83386631 has 4 divisors (see below), whose sum is σ = 83457264. Its totient is φ = 83316000.

The previous prime is 83386627. The next prime is 83386651. The reversal of 83386631 is 13668338.

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

It is a cyclic number.

It is not a de Polignac number, because 83386631 - 2² = 83386627 is a prime.

It is a super-2 number, since 2×83386631² = 13906660459060322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83386651) 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, 33515 + ... + 35916.

It is an arithmetic number, because the mean of its divisors is an integer number (20864316).

Almost surely, 2^83386631 is an apocalyptic number.

83386631 is a deficient number, since it is larger than the sum of its proper divisors (70633).

83386631 is a wasteful number, since it uses less digits than its factorization.

83386631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70632.

The product of its digits is 62208, while the sum is 38.

The square root of 83386631 is about 9131.6280585666. The cubic root of 83386631 is about 436.8833321238.

The spelling of 83386631 in words is "eighty-three million, three hundred eighty-six thousand, six hundred thirty-one".