64696287 has 8 divisors (see below), whose sum is σ = 89044480. Its totient is φ = 41739480.

The previous prime is 64696283. The next prime is 64696297. The reversal of 64696287 is 78269646.

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

It is not a de Polignac number, because 64696287 - 2² = 64696283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64696283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347737 + ... + 347922.

It is an arithmetic number, because the mean of its divisors is an integer number (11130560).

Almost surely, 2^64696287 is an apocalyptic number.

64696287 is a deficient number, since it is larger than the sum of its proper divisors (24348193).

64696287 is a wasteful number, since it uses less digits than its factorization.

64696287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695693.

The product of its digits is 870912, while the sum is 48.

The square root of 64696287 is about 8043.4002138399. The cubic root of 64696287 is about 401.4453688979.

The spelling of 64696287 in words is "sixty-four million, six hundred ninety-six thousand, two hundred eighty-seven".