83682729 has 12 divisors (see below), whose sum is σ = 130173316. Its totient is φ = 51496992.

The previous prime is 83682691. The next prime is 83682769. The reversal of 83682729 is 92728638.

It can be written as a sum of positive squares in 2 ways, for example, as 5890329 + 77792400 = 2427^2 + 8820^2 .

It is not a de Polignac number, because 83682729 - 2⁹ = 83682217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83682769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357502 + ... + 357735.

Almost surely, 2^83682729 is an apocalyptic number.

It is an amenable number.

83682729 is a deficient number, since it is larger than the sum of its proper divisors (46490587).

83682729 is a wasteful number, since it uses less digits than its factorization.

83682729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715256 (or 715253 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 83682729 is about 9147.8264631551. The cubic root of 83682729 is about 437.3998316526.

The spelling of 83682729 in words is "eighty-three million, six hundred eighty-two thousand, seven hundred twenty-nine".