90905355 has 32 divisors (see below), whose sum is σ = 162676800. Its totient is φ = 48162816.

The previous prime is 90905351. The next prime is 90905357. The reversal of 90905355 is 55350909.

It is not a de Polignac number, because 90905355 - 2² = 90905351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90905351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19051 + ... + 23339.

It is an arithmetic number, because the mean of its divisors is an integer number (5083650).

Almost surely, 2^90905355 is an apocalyptic number.

90905355 is a deficient number, since it is larger than the sum of its proper divisors (71771445).

90905355 is a wasteful number, since it uses less digits than its factorization.

90905355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460 (or 4454 counting only the distinct ones).

The product of its (nonzero) digits is 30375, while the sum is 36.

The square root of 90905355 is about 9534.4299777176. The cubic root of 90905355 is about 449.6381535606.

The spelling of 90905355 in words is "ninety million, nine hundred five thousand, three hundred fifty-five".