285723916 has 24 divisors (see below), whose sum is σ = 526067136. Its totient is φ = 135607680.

The previous prime is 285723899. The next prime is 285723923. The reversal of 285723916 is 619327582.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 17476 + ... + 29611.

It is an arithmetic number, because the mean of its divisors is an integer number (21919464).

Almost surely, 2^285723916 is an apocalyptic number.

It is an amenable number.

285723916 is a deficient number, since it is larger than the sum of its proper divisors (240343220).

285723916 is a wasteful number, since it uses less digits than its factorization.

285723916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47169 (or 47167 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 285723916 is about 16903.3699598630. The cubic root of 285723916 is about 658.6411558950.

It can be divided in two parts, 285 and 723916, that added together give a square (724201 = 851²).

The spelling of 285723916 in words is "two hundred eighty-five million, seven hundred twenty-three thousand, nine hundred sixteen".