83272784 has 20 divisors (see below), whose sum is σ = 184389984. Its totient is φ = 35688288.

The previous prime is 83272741. The next prime is 83272793. The reversal of 83272784 is 48727238.

It is a super-2 number, since 2×83272784² = 13868713110221312, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 371642 + ... + 371865.

Almost surely, 2^83272784 is an apocalyptic number.

It is an amenable number.

83272784 is an abundant number, since it is smaller than the sum of its proper divisors (101117200).

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

83272784 is a wasteful number, since it uses less digits than its factorization.

83272784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743522 (or 743516 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 83272784 is about 9125.3922655412. The cubic root of 83272784 is about 436.6844173064.

It can be divided in two parts, 8327 and 2784, that added together give a palindrome (11111).

The spelling of 83272784 in words is "eighty-three million, two hundred seventy-two thousand, seven hundred eighty-four".