64805634 has 24 divisors (see below), whose sum is σ = 140968620. Its totient is φ = 21516288.

The previous prime is 64805579. The next prime is 64805669. The reversal of 64805634 is 43650846.

64805634 is a `hidden beast` number, since 648 + 0 + 5 + 6 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50765625 + 14040009 = 7125^2 + 3747^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2379 + ... + 11630.

Almost surely, 2^64805634 is an apocalyptic number.

64805634 is an abundant number, since it is smaller than the sum of its proper divisors (76162986).

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

64805634 is a wasteful number, since it uses less digits than its factorization.

64805634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14274 (or 14271 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 64805634 is about 8050.1946560316. The cubic root of 64805634 is about 401.6714104071.

The spelling of 64805634 in words is "sixty-four million, eight hundred five thousand, six hundred thirty-four".