90990383 has 8 divisors (see below), whose sum is σ = 100519680. Its totient is φ = 81670680.

The previous prime is 90990379. The next prime is 90990397. The reversal of 90990383 is 38309909.

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 90990383 - 2² = 90990379 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 90990383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90990343) 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, 51485 + ... + 53222.

It is an arithmetic number, because the mean of its divisors is an integer number (12564960).

Almost surely, 2^90990383 is an apocalyptic number.

90990383 is a deficient number, since it is larger than the sum of its proper divisors (9529297).

90990383 is a wasteful number, since it uses less digits than its factorization.

90990383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104797.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 90990383 is about 9538.8879330874. The cubic root of 90990383 is about 449.7782990232.

The spelling of 90990383 in words is "ninety million, nine hundred ninety thousand, three hundred eighty-three".