90458761 has 2 divisors, whose sum is σ = 90458762. Its totient is φ = 90458760.

The previous prime is 90458699. The next prime is 90458813. The reversal of 90458761 is 16785409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 24443136 = 8125^2 + 4944^2 .

It is a cyclic number.

It is not a de Polignac number, because 90458761 - 2⁷ = 90458633 is a prime.

It is not a weakly prime, because it can be changed into another prime (90458161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45229380 + 45229381.

It is an arithmetic number, because the mean of its divisors is an integer number (45229381).

Almost surely, 2^90458761 is an apocalyptic number.

It is an amenable number.

90458761 is a deficient number, since it is larger than the sum of its proper divisors (1).

90458761 is an equidigital number, since it uses as much as digits as its factorization.

90458761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 90458761 is about 9510.9810745264. The cubic root of 90458761 is about 448.9006266491.

It can be divided in two parts, 90458 and 761, that added together give a palindrome (91219).

The spelling of 90458761 in words is "ninety million, four hundred fifty-eight thousand, seven hundred sixty-one".