64858734 has 24 divisors (see below), whose sum is σ = 141038352. Its totient is φ = 21540960.

The previous prime is 64858733. The next prime is 64858771. The reversal of 64858734 is 43785846.

64858734 is a `hidden beast` number, since 64 + 8 + 587 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64858734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64858733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1354 + ... + 11469.

It is an arithmetic number, because the mean of its divisors is an integer number (5876598).

Almost surely, 2^64858734 is an apocalyptic number.

64858734 is an abundant number, since it is smaller than the sum of its proper divisors (76179618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64858734 is a wasteful number, since it uses less digits than its factorization.

64858734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112 (or 13109 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 64858734 is about 8053.4920376195. The cubic root of 64858734 is about 401.7810867209.

The spelling of 64858734 in words is "sixty-four million, eight hundred fifty-eight thousand, seven hundred thirty-four".