90817966 has 8 divisors (see below), whose sum is σ = 140924520. Its totient is φ = 43843128.

The previous prime is 90817949. The next prime is 90817973. The reversal of 90817966 is 66971809.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782856 + ... + 782971.

It is an arithmetic number, because the mean of its divisors is an integer number (17615565).

Almost surely, 2^90817966 is an apocalyptic number.

90817966 is a deficient number, since it is larger than the sum of its proper divisors (50106554).

90817966 is a wasteful number, since it uses less digits than its factorization.

90817966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565858.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 90817966 is about 9529.8460638145. The cubic root of 90817966 is about 449.4940255405.

The spelling of 90817966 in words is "ninety million, eight hundred seventeen thousand, nine hundred sixty-six".