83384574 has 48 divisors (see below), whose sum is σ = 208929168. Its totient is φ = 21990528.

The previous prime is 83384557. The next prime is 83384593. The reversal of 83384574 is 47548338.

It is a super-2 number, since 2×83384574² = 13905974362322952, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7087 + ... + 14730.

It is an arithmetic number, because the mean of its divisors is an integer number (4352691).

Almost surely, 2^83384574 is an apocalyptic number.

83384574 is an abundant number, since it is smaller than the sum of its proper divisors (125544594).

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

83384574 is a wasteful number, since it uses less digits than its factorization.

83384574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21849 (or 21842 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 83384574 is about 9131.5154273538. The cubic root of 83384574 is about 436.8797397158.

The spelling of 83384574 in words is "eighty-three million, three hundred eighty-four thousand, five hundred seventy-four".