64488692 has 24 divisors (see below), whose sum is σ = 117523560. Its totient is φ = 30925440.

The previous prime is 64488673. The next prime is 64488707. The reversal of 64488692 is 29688446.

It can be written as a sum of positive squares in 4 ways, for example, as 4177936 + 60310756 = 2044^2 + 7766^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16442 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (4896815).

Almost surely, 2^64488692 is an apocalyptic number.

It is an amenable number.

64488692 is a deficient number, since it is larger than the sum of its proper divisors (53034868).

64488692 is a wasteful number, since it uses less digits than its factorization.

64488692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731 (or 3729 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 64488692 is about 8030.4851659162. The cubic root of 64488692 is about 401.0155279091.

The spelling of 64488692 in words is "sixty-four million, four hundred eighty-eight thousand, six hundred ninety-two".