90335791 has 8 divisors (see below), whose sum is σ = 111182624. Its totient is φ = 71474400.

The previous prime is 90335779. The next prime is 90335803. The reversal of 90335791 is 19753309.

It is an interprime number because it is at equal distance from previous prime (90335779) and next prime (90335803).

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 90335791 - 2¹⁹ = 89811503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90335791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90335711) 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, 496260 + ... + 496441.

It is an arithmetic number, because the mean of its divisors is an integer number (13897828).

Almost surely, 2^90335791 is an apocalyptic number.

90335791 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

90335791 is a deficient number, since it is larger than the sum of its proper divisors (20846833).

90335791 is a wasteful number, since it uses less digits than its factorization.

90335791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992721.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 90335791 is about 9504.5142432425. The cubic root of 90335791 is about 448.6971219729.

The spelling of 90335791 in words is "ninety million, three hundred thirty-five thousand, seven hundred ninety-one".