90910313 has 8 divisors (see below), whose sum is σ = 99509256. Its totient is φ = 82540800.

The previous prime is 90910301. The next prime is 90910333. The reversal of 90910313 is 31301909.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 90687529 = 472^2 + 9523^2 .

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 90910313 - 2⁶ = 90910249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90910333) 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, 56528 + ... + 58113.

It is an arithmetic number, because the mean of its divisors is an integer number (12438657).

Almost surely, 2^90910313 is an apocalyptic number.

It is an amenable number.

90910313 is a deficient number, since it is larger than the sum of its proper divisors (8598943).

90910313 is a wasteful number, since it uses less digits than its factorization.

90910313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114715.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 90910313 is about 9534.6899792285. The cubic root of 90910313 is about 449.6463278697.

The spelling of 90910313 in words is "ninety million, nine hundred ten thousand, three hundred thirteen".