64845694 has 16 divisors (see below), whose sum is σ = 102189600. Its totient is φ = 30801760.

The previous prime is 64845691. The next prime is 64845709. The reversal of 64845694 is 49654846.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64845691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124 + ... + 11584.

It is an arithmetic number, because the mean of its divisors is an integer number (6386850).

Almost surely, 2^64845694 is an apocalyptic number.

64845694 is a deficient number, since it is larger than the sum of its proper divisors (37343906).

64845694 is a wasteful number, since it uses less digits than its factorization.

64845694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9635.

The product of its digits is 829440, while the sum is 46.

The square root of 64845694 is about 8052.6824102283. The cubic root of 64845694 is about 401.7541585741.

The spelling of 64845694 in words is "sixty-four million, eight hundred forty-five thousand, six hundred ninety-four".