64904100 has 36 divisors (see below), whose sum is σ = 187790064. Its totient is φ = 17307680.

The previous prime is 64904083. The next prime is 64904101. The reversal of 64904100 is 140946.

It is not an unprimeable number, because it can be changed into a prime (64904101) 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, 107874 + ... + 108473.

Almost surely, 2^64904100 is an apocalyptic number.

64904100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64904100 is an abundant number, since it is smaller than the sum of its proper divisors (122885964).

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

64904100 is a wasteful number, since it uses less digits than its factorization.

64904100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216364 (or 216357 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 64904100 is about 8056.3080874554. The cubic root of 64904100 is about 401.8747413021.

The spelling of 64904100 in words is "sixty-four million, nine hundred four thousand, one hundred".