64123308 has 18 divisors (see below), whose sum is σ = 162089564. Its totient is φ = 21374424.

The previous prime is 64123307. The next prime is 64123327. The reversal of 64123308 is 80332146.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×64123308² = 8223597257725728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64123307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 890566 + ... + 890637.

Almost surely, 2^64123308 is an apocalyptic number.

It is an amenable number.

64123308 is an abundant number, since it is smaller than the sum of its proper divisors (97966256).

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

64123308 is a wasteful number, since it uses less digits than its factorization.

64123308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781213 (or 1781208 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64123308 is about 8007.7030414470. The cubic root of 64123308 is about 400.2567268597.

The spelling of 64123308 in words is "sixty-four million, one hundred twenty-three thousand, three hundred eight".