90067331 has 2 divisors, whose sum is σ = 90067332. Its totient is φ = 90067330.

The previous prime is 90067319. The next prime is 90067337. The reversal of 90067331 is 13376009.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90067331 is a prime.

It is a super-2 number, since 2×90067331² = 16224248226927122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90067294 and 90067303.

It is not a weakly prime, because it can be changed into another prime (90067337) 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, 45033665 + 45033666.

It is an arithmetic number, because the mean of its divisors is an integer number (45033666).

Almost surely, 2^90067331 is an apocalyptic number.

90067331 is a deficient number, since it is larger than the sum of its proper divisors (1).

90067331 is an equidigital number, since it uses as much as digits as its factorization.

90067331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 90067331 is about 9490.3809723319. The cubic root of 90067331 is about 448.2522014145.

The spelling of 90067331 in words is "ninety million, sixty-seven thousand, three hundred thirty-one".