90319983 has 8 divisors (see below), whose sum is σ = 129690288. Its totient is φ = 55581504.

The previous prime is 90319981. The next prime is 90319993. The reversal of 90319983 is 38991309.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90319983 - 2¹ = 90319981 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90319981) 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, 1157910 + ... + 1157987.

It is an arithmetic number, because the mean of its divisors is an integer number (16211286).

Almost surely, 2^90319983 is an apocalyptic number.

90319983 is a deficient number, since it is larger than the sum of its proper divisors (39370305).

90319983 is a wasteful number, since it uses less digits than its factorization.

90319983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315913.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 90319983 is about 9503.6826020233. The cubic root of 90319983 is about 448.6709477113.

The spelling of 90319983 in words is "ninety million, three hundred nineteen thousand, nine hundred eighty-three".