64285870 has 16 divisors (see below), whose sum is σ = 126234288. Its totient is φ = 23376640.

The previous prime is 64285853. The next prime is 64285919. The reversal of 64285870 is 7858246.

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, 292099 + ... + 292318.

It is an arithmetic number, because the mean of its divisors is an integer number (7889643).

Almost surely, 2^64285870 is an apocalyptic number.

64285870 is a deficient number, since it is larger than the sum of its proper divisors (61948418).

64285870 is a wasteful number, since it uses less digits than its factorization.

64285870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584435.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 64285870 is about 8017.8469678586. The cubic root of 64285870 is about 400.5946779572.

The spelling of 64285870 in words is "sixty-four million, two hundred eighty-five thousand, eight hundred seventy".