90303998 has 8 divisors (see below), whose sum is σ = 142585320. Its totient is φ = 42775560.

The previous prime is 90303959. The next prime is 90304009. The reversal of 90303998 is 89930309.

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, 1188173 + ... + 1188248.

It is an arithmetic number, because the mean of its divisors is an integer number (17823165).

Almost surely, 2^90303998 is an apocalyptic number.

90303998 is a deficient number, since it is larger than the sum of its proper divisors (52281322).

90303998 is a wasteful number, since it uses less digits than its factorization.

90303998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376442.

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

The square root of 90303998 is about 9502.8415750238. The cubic root of 90303998 is about 448.6444772744.

The spelling of 90303998 in words is "ninety million, three hundred three thousand, nine hundred ninety-eight".