90245377 has 4 divisors (see below), whose sum is σ = 91259460. Its totient is φ = 89231296.

The previous prime is 90245369. The next prime is 90245411. The reversal of 90245377 is 77354209.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49999041 + 40246336 = 7071^2 + 6344^2 .

It is a cyclic number.

It is not a de Polignac number, because 90245377 - 2³ = 90245369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90245317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506908 + ... + 507085.

It is an arithmetic number, because the mean of its divisors is an integer number (22814865).

Almost surely, 2^90245377 is an apocalyptic number.

It is an amenable number.

90245377 is a deficient number, since it is larger than the sum of its proper divisors (1014083).

90245377 is a wasteful number, since it uses less digits than its factorization.

90245377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014082.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 90245377 is about 9499.7566810945. The cubic root of 90245377 is about 448.5473768084.

The spelling of 90245377 in words is "ninety million, two hundred forty-five thousand, three hundred seventy-seven".