90762169 has 2 divisors, whose sum is σ = 90762170. Its totient is φ = 90762168.

The previous prime is 90762137. The next prime is 90762193. The reversal of 90762169 is 96126709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90630400 + 131769 = 9520^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 90762169 - 2⁵ = 90762137 is a prime.

It is a super-2 number, since 2×90762169² = 16475542643169122, which contains 22 as substring.

It is equal to p_5258668 and since 90762169 and 5258668 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (90762869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45381084 + 45381085.

It is an arithmetic number, because the mean of its divisors is an integer number (45381085).

Almost surely, 2^90762169 is an apocalyptic number.

It is an amenable number.

90762169 is a deficient number, since it is larger than the sum of its proper divisors (1).

90762169 is an equidigital number, since it uses as much as digits as its factorization.

90762169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 90762169 is about 9526.9181270755. The cubic root of 90762169 is about 449.4019528764.

The spelling of 90762169 in words is "ninety million, seven hundred sixty-two thousand, one hundred sixty-nine".