83449831 has 2 divisors, whose sum is σ = 83449832. Its totient is φ = 83449830.

The previous prime is 83449823. The next prime is 83449859. The reversal of 83449831 is 13894438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83449831 - 2³ = 83449823 is a prime.

It is a super-2 number, since 2×83449831² = 13927748587857122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83449231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41724915 + 41724916.

It is an arithmetic number, because the mean of its divisors is an integer number (41724916).

Almost surely, 2^83449831 is an apocalyptic number.

83449831 is a deficient number, since it is larger than the sum of its proper divisors (1).

83449831 is an equidigital number, since it uses as much as digits as its factorization.

83449831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 83449831 is about 9135.0879032443. The cubic root of 83449831 is about 436.9936777655.

The spelling of 83449831 in words is "eighty-three million, four hundred forty-nine thousand, eight hundred thirty-one".