90291383 has 32 divisors (see below), whose sum is σ = 114984576. Its totient is φ = 69009408.

The previous prime is 90291379. The next prime is 90291419. The reversal of 90291383 is 38319209.

It is not a de Polignac number, because 90291383 - 2² = 90291379 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90291343) 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, 467735 + ... + 467927.

It is an arithmetic number, because the mean of its divisors is an integer number (3593268).

Almost surely, 2^90291383 is an apocalyptic number.

90291383 is a deficient number, since it is larger than the sum of its proper divisors (24693193).

90291383 is a wasteful number, since it uses less digits than its factorization.

90291383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 90291383 is about 9502.1778030092. The cubic root of 90291383 is about 448.6235851996.

The spelling of 90291383 in words is "ninety million, two hundred ninety-one thousand, three hundred eighty-three".