64906276 has 24 divisors (see below), whose sum is σ = 119871360. Its totient is φ = 30689472.

The previous prime is 64906243. The next prime is 64906277. The reversal of 64906276 is 67260946.

64906276 = 1633² + 1634² + ... + 1656².

64906276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64906277) by changing a digit.

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, 4225 + ... + 12151.

It is an arithmetic number, because the mean of its divisors is an integer number (4994640).

Almost surely, 2^64906276 is an apocalyptic number.

It is an amenable number.

64906276 is a deficient number, since it is larger than the sum of its proper divisors (54965084).

64906276 is a wasteful number, since it uses less digits than its factorization.

64906276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043 (or 8041 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 64906276 is about 8056.4431357765. The cubic root of 64906276 is about 401.8792323880.

The spelling of 64906276 in words is "sixty-four million, nine hundred six thousand, two hundred seventy-six".