83684525 has 12 divisors (see below), whose sum is σ = 103883232. Its totient is φ = 66873840.

The previous prime is 83684507. The next prime is 83684539. The reversal of 83684525 is 52548638.

It is not a de Polignac number, because 83684525 - 2¹⁴ = 83668141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39134 + ... + 41216.

It is an arithmetic number, because the mean of its divisors is an integer number (8656936).

Almost surely, 2^83684525 is an apocalyptic number.

It is an amenable number.

83684525 is a deficient number, since it is larger than the sum of its proper divisors (20198707).

83684525 is a wasteful number, since it uses less digits than its factorization.

83684525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700 (or 3695 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 83684525 is about 9147.9246280236. The cubic root of 83684525 is about 437.4029607908.

The spelling of 83684525 in words is "eighty-three million, six hundred eighty-four thousand, five hundred twenty-five".