90249377 has 2 divisors, whose sum is σ = 90249378. Its totient is φ = 90249376.

The previous prime is 90249361. The next prime is 90249431. The reversal of 90249377 is 77394209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88811776 + 1437601 = 9424^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 90249377 - 2⁴ = 90249361 is a prime.

It is not a weakly prime, because it can be changed into another prime (90249877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45124688 + 45124689.

It is an arithmetic number, because the mean of its divisors is an integer number (45124689).

Almost surely, 2^90249377 is an apocalyptic number.

It is an amenable number.

90249377 is a deficient number, since it is larger than the sum of its proper divisors (1).

90249377 is an equidigital number, since it uses as much as digits as its factorization.

90249377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 90249377 is about 9499.9672104697. The cubic root of 90249377 is about 448.5540037887.

The spelling of 90249377 in words is "ninety million, two hundred forty-nine thousand, three hundred seventy-seven".