64395457 has 12 divisors (see below), whose sum is σ = 77493780. Its totient is φ = 53291616.

The previous prime is 64395433. The next prime is 64395481. The reversal of 64395457 is 75459346.

64395457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64395433) and next prime (64395481).

It can be written as a sum of positive squares in 2 ways, for example, as 28826161 + 35569296 = 5369^2 + 5964^2 .

It is not a de Polignac number, because 64395457 - 2¹¹ = 64393409 is a prime.

64395457 is a Rhonda number in base 10.

Its product of digits (453600) is a multiple of the sum of its prime factors (45360).

It is not an unprimeable number, because it can be changed into a prime (64395157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21238 + ... + 24079.

It is an arithmetic number, because the mean of its divisors is an integer number (6457815).

Almost surely, 2^64395457 is an apocalyptic number.

It is an amenable number.

64395457 is a deficient number, since it is larger than the sum of its proper divisors (13098323).

64395457 is a wasteful number, since it uses less digits than its factorization.

64395457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45360 (or 45353 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The square root of 64395457 is about 8024.6779997705. The cubic root of 64395457 is about 400.8221776519.

It can be divided in two parts, 643 and 95457, that added together give a square (96100 = 310²).

The spelling of 64395457 in words is "sixty-four million, three hundred ninety-five thousand, four hundred fifty-seven".