64429670 has 16 divisors (see below), whose sum is σ = 121016160. Its totient is φ = 24651264.

The previous prime is 64429669. The next prime is 64429709. The reversal of 64429670 is 7692446.

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, 139835 + ... + 140294.

It is an arithmetic number, because the mean of its divisors is an integer number (7563510).

Almost surely, 2^64429670 is an apocalyptic number.

64429670 is a deficient number, since it is larger than the sum of its proper divisors (56586490).

64429670 is a wasteful number, since it uses less digits than its factorization.

64429670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280159.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 64429670 is about 8026.8094533258. The cubic root of 64429670 is about 400.8931500564.

The spelling of 64429670 in words is "sixty-four million, four hundred twenty-nine thousand, six hundred seventy".