8990831 has 2 divisors, whose sum is σ = 8990832. Its totient is φ = 8990830.

The previous prime is 8990803. The next prime is 8990843. The reversal of 8990831 is 1380998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8990831 - 2¹⁴ = 8974447 is a prime.

It is a super-2 number, since 2×8990831² = 161670084141122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8990881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4495415 + 4495416.

It is an arithmetic number, because the mean of its divisors is an integer number (4495416).

Almost surely, 2^8990831 is an apocalyptic number.

8990831 is a deficient number, since it is larger than the sum of its proper divisors (1).

8990831 is an equidigital number, since it uses as much as digits as its factorization.

8990831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8990831 is about 2998.4714439194. The cubic root of 8990831 is about 207.9377201976.

The spelling of 8990831 in words is "eight million, nine hundred ninety thousand, eight hundred thirty-one".