64845308 has 24 divisors (see below), whose sum is σ = 124440624. Its totient is φ = 29321600.

The previous prime is 64845301. The next prime is 64845323. The reversal of 64845308 is 80354846.

It is a happy number.

It is a super-2 number, since 2×64845308² = 8409827939229728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64845301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4928 + ... + 12408.

It is an arithmetic number, because the mean of its divisors is an integer number (5185026).

Almost surely, 2^64845308 is an apocalyptic number.

It is an amenable number.

64845308 is a deficient number, since it is larger than the sum of its proper divisors (59595316).

64845308 is a wasteful number, since it uses less digits than its factorization.

64845308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693 (or 7691 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 64845308 is about 8052.6584430236. The cubic root of 64845308 is about 401.7533614129.

The spelling of 64845308 in words is "sixty-four million, eight hundred forty-five thousand, three hundred eight".