64133736 has 32 divisors (see below), whose sum is σ = 160539360. Its totient is φ = 21350592.

The previous prime is 64133723. The next prime is 64133779. The reversal of 64133736 is 63733146.

64133736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64133736² = 8226272186635392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64133697 and 64133706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28011 + ... + 30213.

It is an arithmetic number, because the mean of its divisors is an integer number (5016855).

Almost surely, 2^64133736 is an apocalyptic number.

It is an amenable number.

64133736 is an abundant number, since it is smaller than the sum of its proper divisors (96405624).

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

64133736 is a wasteful number, since it uses less digits than its factorization.

64133736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425 (or 3421 counting only the distinct ones).

The product of its digits is 27216, while the sum is 33.

The square root of 64133736 is about 8008.3541380236. The cubic root of 64133736 is about 400.2784228235.

The spelling of 64133736 in words is "sixty-four million, one hundred thirty-three thousand, seven hundred thirty-six".