64612408 has 32 divisors (see below), whose sum is σ = 139356000. Its totient is φ = 27510912.

The previous prime is 64612399. The next prime is 64612409. The reversal of 64612408 is 80421646.

It is a self number, because there is not a number n which added to its sum of digits gives 64612408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64612409) 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, 5118 + ... + 12466.

It is an arithmetic number, because the mean of its divisors is an integer number (4354875).

Almost surely, 2^64612408 is an apocalyptic number.

It is an amenable number.

64612408 is an abundant number, since it is smaller than the sum of its proper divisors (74743592).

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

64612408 is a wasteful number, since it uses less digits than its factorization.

64612408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519 (or 7515 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 64612408 is about 8038.1843721079. The cubic root of 64612408 is about 401.2718020134.

The spelling of 64612408 in words is "sixty-four million, six hundred twelve thousand, four hundred eight".