64164493 has 8 divisors (see below), whose sum is σ = 65264768. Its totient is φ = 63068544.

The previous prime is 64164491. The next prime is 64164509. The reversal of 64164493 is 39446146.

64164493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64164493 - 2¹ = 64164491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64164491) 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 7 ways as a sum of consecutive naturals, for example, 44380 + ... + 45802.

It is an arithmetic number, because the mean of its divisors is an integer number (8158096).

Almost surely, 2^64164493 is an apocalyptic number.

It is an amenable number.

64164493 is a deficient number, since it is larger than the sum of its proper divisors (1100275).

64164493 is a wasteful number, since it uses less digits than its factorization.

64164493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163.

The product of its digits is 62208, while the sum is 37.

The square root of 64164493 is about 8010.2742150316. The cubic root of 64164493 is about 400.3424005710.

The spelling of 64164493 in words is "sixty-four million, one hundred sixty-four thousand, four hundred ninety-three".