64825930 has 32 divisors (see below), whose sum is σ = 133059024. Its totient is φ = 22526976.

The previous prime is 64825903. The next prime is 64825951. The reversal of 64825930 is 3952846.

It can be written as a sum of positive squares in 8 ways, for example, as 35676729 + 29149201 = 5973^2 + 5399^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64825930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12457 + ... + 16876.

Almost surely, 2^64825930 is an apocalyptic number.

64825930 is an abundant number, since it is smaller than the sum of its proper divisors (68233094).

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

64825930 is a wasteful number, since it uses less digits than its factorization.

64825930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29370.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64825930 is about 8051.4551479841. The cubic root of 64825930 is about 401.7133382023.

The spelling of 64825930 in words is "sixty-four million, eight hundred twenty-five thousand, nine hundred thirty".