90363457 has 4 divisors (see below), whose sum is σ = 90400900. Its totient is φ = 90326016.

The previous prime is 90363443. The next prime is 90363461. The reversal of 90363457 is 75436309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75436309 = 13 ⋅5802793.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 67092481 = 4824^2 + 8191^2 .

It is a cyclic number.

It is not a de Polignac number, because 90363457 - 2¹⁵ = 90330689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90363157) 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, 14832 + ... + 20017.

It is an arithmetic number, because the mean of its divisors is an integer number (22600225).

Almost surely, 2^90363457 is an apocalyptic number.

It is an amenable number.

90363457 is a deficient number, since it is larger than the sum of its proper divisors (37443).

90363457 is a wasteful number, since it uses less digits than its factorization.

90363457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37442.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 90363457 is about 9505.9695455014. The cubic root of 90363457 is about 448.7429228949.

The spelling of 90363457 in words is "ninety million, three hundred sixty-three thousand, four hundred fifty-seven".