64623470 has 16 divisors (see below), whose sum is σ = 117095328. Its totient is φ = 25677600.

The previous prime is 64623431. The next prime is 64623509. The reversal of 64623470 is 7432646.

It is an interprime number because it is at equal distance from previous prime (64623431) and next prime (64623509).

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, 19889 + ... + 22908.

It is an arithmetic number, because the mean of its divisors is an integer number (7318458).

Almost surely, 2^64623470 is an apocalyptic number.

64623470 is a deficient number, since it is larger than the sum of its proper divisors (52471858).

64623470 is a wasteful number, since it uses less digits than its factorization.

64623470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42955.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64623470 is about 8038.8724333702. The cubic root of 64623470 is about 401.2947006873.

The spelling of 64623470 in words is "sixty-four million, six hundred twenty-three thousand, four hundred seventy".