90269867 has 2 divisors, whose sum is σ = 90269868. Its totient is φ = 90269866.

The previous prime is 90269863. The next prime is 90269869. The reversal of 90269867 is 76896209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90269867 - 2² = 90269863 is a prime.

Together with 90269869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90269863) 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, 45134933 + 45134934.

It is an arithmetic number, because the mean of its divisors is an integer number (45134934).

Almost surely, 2^90269867 is an apocalyptic number.

90269867 is a deficient number, since it is larger than the sum of its proper divisors (1).

90269867 is an equidigital number, since it uses as much as digits as its factorization.

90269867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 90269867 is about 9501.0455740408. The cubic root of 90269867 is about 448.5879474249.

The spelling of 90269867 in words is "ninety million, two hundred sixty-nine thousand, eight hundred sixty-seven".