64696215 has 8 divisors (see below), whose sum is σ = 103513968. Its totient is φ = 34504640.

The previous prime is 64696201. The next prime is 64696223. The reversal of 64696215 is 51269646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64696215 - 2⁵ = 64696183 is a prime.

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, 2156526 + ... + 2156555.

It is an arithmetic number, because the mean of its divisors is an integer number (12939246).

Almost surely, 2^64696215 is an apocalyptic number.

64696215 is a deficient number, since it is larger than the sum of its proper divisors (38817753).

64696215 is a wasteful number, since it uses less digits than its factorization.

64696215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313089.

The product of its digits is 77760, while the sum is 39.

The square root of 64696215 is about 8043.3957381196. The cubic root of 64696215 is about 401.4452199760.

The spelling of 64696215 in words is "sixty-four million, six hundred ninety-six thousand, two hundred fifteen".