64104691 has 12 divisors (see below), whose sum is σ = 74824128. Its totient is φ = 54760272.

The previous prime is 64104673. The next prime is 64104697. The reversal of 64104691 is 19640146.

It is not a de Polignac number, because 64104691 - 2⁵ = 64104659 is a prime.

It is a super-2 number, since 2×64104691² = 8218822816410962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64104697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13470 + ... + 17596.

It is an arithmetic number, because the mean of its divisors is an integer number (6235344).

Almost surely, 2^64104691 is an apocalyptic number.

64104691 is a deficient number, since it is larger than the sum of its proper divisors (10719437).

64104691 is a wasteful number, since it uses less digits than its factorization.

64104691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458 (or 4451 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 64104691 is about 8006.5405138549. The cubic root of 64104691 is about 400.2179874321.

The spelling of 64104691 in words is "sixty-four million, one hundred four thousand, six hundred ninety-one".