83683731 has 4 divisors (see below), whose sum is σ = 111578312. Its totient is φ = 55789152.

The previous prime is 83683697. The next prime is 83683781. The reversal of 83683731 is 13738638.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83683731 - 2⁹ = 83683219 is a prime.

It is a super-2 number, since 2×83683731² = 14005933668160722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83683731.

It is not an unprimeable number, because it can be changed into a prime (83683781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13947286 + ... + 13947291.

It is an arithmetic number, because the mean of its divisors is an integer number (27894578).

Almost surely, 2^83683731 is an apocalyptic number.

83683731 is a deficient number, since it is larger than the sum of its proper divisors (27894581).

83683731 is a wasteful number, since it uses less digits than its factorization.

83683731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27894580.

The product of its digits is 72576, while the sum is 39.

The square root of 83683731 is about 9147.8812300991. The cubic root of 83683731 is about 437.4015774246.

The spelling of 83683731 in words is "eighty-three million, six hundred eighty-three thousand, seven hundred thirty-one".