90264457 has 2 divisors, whose sum is σ = 90264458. Its totient is φ = 90264456.

The previous prime is 90264431. The next prime is 90264469. The reversal of 90264457 is 75446209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59228416 + 31036041 = 7696^2 + 5571^2 .

It is a cyclic number.

It is not a de Polignac number, because 90264457 - 2¹⁵ = 90231689 is a prime.

It is not a weakly prime, because it can be changed into another prime (90264257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45132228 + 45132229.

It is an arithmetic number, because the mean of its divisors is an integer number (45132229).

Almost surely, 2^90264457 is an apocalyptic number.

It is an amenable number.

90264457 is a deficient number, since it is larger than the sum of its proper divisors (1).

90264457 is an equidigital number, since it uses as much as digits as its factorization.

90264457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 90264457 is about 9500.7608642677. The cubic root of 90264457 is about 448.5789857438.

The spelling of 90264457 in words is "ninety million, two hundred sixty-four thousand, four hundred fifty-seven".