90336691 has 8 divisors (see below), whose sum is σ = 96726960. Its totient is φ = 84066048.

The previous prime is 90336689. The next prime is 90336731. The reversal of 90336691 is 19663309.

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 90336691 - 2¹ = 90336689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90336691.

It is not an unprimeable number, because it can be changed into a prime (90336601) 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, 28341 + ... + 31366.

It is an arithmetic number, because the mean of its divisors is an integer number (12090870).

Almost surely, 2^90336691 is an apocalyptic number.

90336691 is a deficient number, since it is larger than the sum of its proper divisors (6390269).

90336691 is a wasteful number, since it uses less digits than its factorization.

90336691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59813.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 90336691 is about 9504.5615890477. The cubic root of 90336691 is about 448.6986120655.

The spelling of 90336691 in words is "ninety million, three hundred thirty-six thousand, six hundred ninety-one".