90931367 has 2 divisors, whose sum is σ = 90931368. Its totient is φ = 90931366.

The previous prime is 90931363. The next prime is 90931381. The reversal of 90931367 is 76313909.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90931367 - 2² = 90931363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90931367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90931363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45465683 + 45465684.

It is an arithmetic number, because the mean of its divisors is an integer number (45465684).

Almost surely, 2^90931367 is an apocalyptic number.

90931367 is a deficient number, since it is larger than the sum of its proper divisors (1).

90931367 is an equidigital number, since it uses as much as digits as its factorization.

90931367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 90931367 is about 9535.7939889660. The cubic root of 90931367 is about 449.6810365211.

The spelling of 90931367 in words is "ninety million, nine hundred thirty-one thousand, three hundred sixty-seven".