64664230 has 16 divisors (see below), whose sum is σ = 116489520. Its totient is φ = 25844832.

The previous prime is 64664213. The next prime is 64664251. The reversal of 64664230 is 3246646.

It is a junction number, because it is equal to n+sod(n) for n = 64664192 and 64664201.

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, 18697 + ... + 21883.

It is an arithmetic number, because the mean of its divisors is an integer number (7280595).

Almost surely, 2^64664230 is an apocalyptic number.

64664230 is a deficient number, since it is larger than the sum of its proper divisors (51825290).

64664230 is a wasteful number, since it uses less digits than its factorization.

64664230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 64664230 is about 8041.4072151583. The cubic root of 64664230 is about 401.3790525711.

The spelling of 64664230 in words is "sixty-four million, six hundred sixty-four thousand, two hundred thirty".