908986231 has 2 divisors, whose sum is σ = 908986232. Its totient is φ = 908986230.

The previous prime is 908986229. The next prime is 908986241. The reversal of 908986231 is 132689809.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 908986231 - 2¹ = 908986229 is a prime.

It is a super-2 number, since 2×908986231² = 1652511936295170722, which contains 22 as substring.

Together with 908986229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (908986241) 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, 454493115 + 454493116.

It is an arithmetic number, because the mean of its divisors is an integer number (454493116).

Almost surely, 2^908986231 is an apocalyptic number.

908986231 is a deficient number, since it is larger than the sum of its proper divisors (1).

908986231 is an equidigital number, since it uses as much as digits as its factorization.

908986231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 908986231 is about 30149.3985180468. The cubic root of 908986231 is about 968.6921229883.

The spelling of 908986231 in words is "nine hundred eight million, nine hundred eighty-six thousand, two hundred thirty-one".