64534956 has 24 divisors (see below), whose sum is σ = 154652400. Its totient is φ = 20930112.

The previous prime is 64534949. The next prime is 64534957. The reversal of 64534956 is 65943546.

It is not an unprimeable number, because it can be changed into a prime (64534957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72231 + ... + 73118.

It is an arithmetic number, because the mean of its divisors is an integer number (6443850).

Almost surely, 2^64534956 is an apocalyptic number.

It is an amenable number.

64534956 is an abundant number, since it is smaller than the sum of its proper divisors (90117444).

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

64534956 is a wasteful number, since it uses less digits than its factorization.

64534956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145393 (or 145391 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 64534956 is about 8033.3651728276. The cubic root of 64534956 is about 401.1114007774. Note that the first 3 decimals are identical.

The spelling of 64534956 in words is "sixty-four million, five hundred thirty-four thousand, nine hundred fifty-six".