85021384 has 16 divisors (see below), whose sum is σ = 182188800. Its totient is φ = 36437712.

The previous prime is 85021361. The next prime is 85021399. The reversal of 85021384 is 48312058.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759064 + ... + 759175.

It is an arithmetic number, because the mean of its divisors is an integer number (11386800).

Almost surely, 2^85021384 is an apocalyptic number.

It is an amenable number.

85021384 is an abundant number, since it is smaller than the sum of its proper divisors (97167416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85021384 is a wasteful number, since it uses less digits than its factorization.

85021384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518252 (or 1518248 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 85021384 is about 9220.7040945906. The cubic root of 85021384 is about 439.7198354206.

The spelling of 85021384 in words is "eighty-five million, twenty-one thousand, three hundred eighty-four".