8249679931 has 2 divisors, whose sum is σ = 8249679932. Its totient is φ = 8249679930.

The previous prime is 8249679883. The next prime is 8249679941. The reversal of 8249679931 is 1399769428.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8249679931 - 2¹³ = 8249671739 is a prime.

It is a super-2 number, since 2×8249679931² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8249679941) by changing a digit.

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 as a sum of consecutive naturals, namely, 4124839965 + 4124839966.

It is an arithmetic number, because the mean of its divisors is an integer number (4124839966).

Almost surely, 2^8249679931 is an apocalyptic number.

8249679931 is a deficient number, since it is larger than the sum of its proper divisors (1).

8249679931 is an equidigital number, since it uses as much as digits as its factorization.

8249679931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 58.

The square root of 8249679931 is about 90827.7486839787. The cubic root of 8249679931 is about 2020.5938791519.

The spelling of 8249679931 in words is "eight billion, two hundred forty-nine million, six hundred seventy-nine thousand, nine hundred thirty-one".