64706873 has 16 divisors (see below), whose sum is σ = 82553856. Its totient is φ = 49245840.

The previous prime is 64706861. The next prime is 64706891. The reversal of 64706873 is 37860746.

It is not a de Polignac number, because 64706873 - 2⁶ = 64706809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64706873.

It is not an unprimeable number, because it can be changed into a prime (64706833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6461 + ... + 13082.

It is an arithmetic number, because the mean of its divisors is an integer number (5159616).

Almost surely, 2^64706873 is an apocalyptic number.

It is an amenable number.

64706873 is a deficient number, since it is larger than the sum of its proper divisors (17846983).

64706873 is a wasteful number, since it uses less digits than its factorization.

64706873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19604.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 64706873 is about 8044.0582419572. The cubic root of 64706873 is about 401.4672633481.

The spelling of 64706873 in words is "sixty-four million, seven hundred six thousand, eight hundred seventy-three".