90050857 has 8 divisors (see below), whose sum is σ = 97118784. Its totient is φ = 83003088.

The previous prime is 90050837. The next prime is 90050897. The reversal of 90050857 is 75805009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90050857 - 2²³ = 81662249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90050827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4998 + ... + 14320.

It is an arithmetic number, because the mean of its divisors is an integer number (12139848).

Almost surely, 2^90050857 is an apocalyptic number.

It is an amenable number.

90050857 is a deficient number, since it is larger than the sum of its proper divisors (7067927).

90050857 is a wasteful number, since it uses less digits than its factorization.

90050857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 90050857 is about 9489.5130012030. The cubic root of 90050857 is about 448.2248701689.

The spelling of 90050857 in words is "ninety million, fifty thousand, eight hundred fifty-seven".