64423064 has 32 divisors (see below), whose sum is σ = 128271600. Its totient is φ = 30228480.

The previous prime is 64423063. The next prime is 64423067. The reversal of 64423064 is 46032446.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64423061) 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, 86807 + ... + 87545.

Almost surely, 2^64423064 is an apocalyptic number.

It is an amenable number.

64423064 is a deficient number, since it is larger than the sum of its proper divisors (63848536).

64423064 is a wasteful number, since it uses less digits than its factorization.

64423064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 64423064 is about 8026.3979467754. The cubic root of 64423064 is about 400.8794483428.

The spelling of 64423064 in words is "sixty-four million, four hundred twenty-three thousand, sixty-four".