90104227 has 2 divisors, whose sum is σ = 90104228. Its totient is φ = 90104226.

The previous prime is 90104207. The next prime is 90104237. The reversal of 90104227 is 72240109.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90104227 is a prime.

It is not a weakly prime, because it can be changed into another prime (90104207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45052113 + 45052114.

It is an arithmetic number, because the mean of its divisors is an integer number (45052114).

Almost surely, 2^90104227 is an apocalyptic number.

90104227 is a deficient number, since it is larger than the sum of its proper divisors (1).

90104227 is an equidigital number, since it uses as much as digits as its factorization.

90104227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 90104227 is about 9492.3246362522. The cubic root of 90104227 is about 448.3134017602.

The spelling of 90104227 in words is "ninety million, one hundred four thousand, two hundred twenty-seven".