82509916 has 12 divisors (see below), whose sum is σ = 144471880. Its totient is φ = 41232240.

The previous prime is 82509893. The next prime is 82509943. The reversal of 82509916 is 61990528.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4531 + ... + 13621.

Almost surely, 2^82509916 is an apocalyptic number.

It is an amenable number.

82509916 is a deficient number, since it is larger than the sum of its proper divisors (61961964).

82509916 is a wasteful number, since it uses less digits than its factorization.

82509916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11364 (or 11362 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 82509916 is about 9083.4969037260. The cubic root of 82509916 is about 435.3468251778.

The spelling of 82509916 in words is "eighty-two million, five hundred nine thousand, nine hundred sixteen".