90998602 has 8 divisors (see below), whose sum is σ = 136879200. Its totient is φ = 45372204.

The previous prime is 90998597. The next prime is 90998617. The reversal of 90998602 is 20689909.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62652 + ... + 64087.

It is an arithmetic number, because the mean of its divisors is an integer number (17109900).

Almost surely, 2^90998602 is an apocalyptic number.

90998602 is a deficient number, since it is larger than the sum of its proper divisors (45880598).

90998602 is a wasteful number, since it uses less digits than its factorization.

90998602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127100.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 90998602 is about 9539.3187387779. The cubic root of 90998602 is about 449.7918411743.

The spelling of 90998602 in words is "ninety million, nine hundred ninety-eight thousand, six hundred two".