64631092 has 12 divisors (see below), whose sum is σ = 113325156. Its totient is φ = 32252480.

The previous prime is 64631071. The next prime is 64631101. The reversal of 64631092 is 29013646.

64631092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5740816 + 58890276 = 2396^2 + 7674^2 .

It is a super-2 number, since 2×64631092² = 8354356106224928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423 + ... + 17590.

It is an arithmetic number, because the mean of its divisors is an integer number (9443763).

Almost surely, 2^64631092 is an apocalyptic number.

It is an amenable number.

64631092 is a deficient number, since it is larger than the sum of its proper divisors (48694064).

64631092 is a wasteful number, since it uses less digits than its factorization.

64631092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31538 (or 31536 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 64631092 is about 8039.3464908536. The cubic root of 64631092 is about 401.3104769369.

The spelling of 64631092 in words is "sixty-four million, six hundred thirty-one thousand, ninety-two".