82513784 has 32 divisors (see below), whose sum is σ = 164235600. Its totient is φ = 38730240.

The previous prime is 82513777. The next prime is 82513793. The reversal of 82513784 is 48731528.

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, 100094 + ... + 100914.

Almost surely, 2^82513784 is an apocalyptic number.

It is an amenable number.

82513784 is a deficient number, since it is larger than the sum of its proper divisors (81721816).

82513784 is a wasteful number, since it uses less digits than its factorization.

82513784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1579 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 82513784 is about 9083.7098148279. The cubic root of 82513784 is about 435.3536279772.

The spelling of 82513784 in words is "eighty-two million, five hundred thirteen thousand, seven hundred eighty-four".