64906312 has 32 divisors (see below), whose sum is σ = 126501120. Its totient is φ = 31187520.

The previous prime is 64906301. The next prime is 64906327. The reversal of 64906312 is 21360946.

64906312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 7 ways as a sum of consecutive naturals, for example, 38103 + ... + 39769.

It is an arithmetic number, because the mean of its divisors is an integer number (3953160).

Almost surely, 2^64906312 is an apocalyptic number.

64906312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64906312 is a deficient number, since it is larger than the sum of its proper divisors (61594808).

64906312 is a wasteful number, since it uses less digits than its factorization.

64906312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1857 counting only the distinct ones).

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

The square root of 64906312 is about 8056.4453700128. The cubic root of 64906312 is about 401.8793066882.

The spelling of 64906312 in words is "sixty-four million, nine hundred six thousand, three hundred twelve".