90087898 has 8 divisors (see below), whose sum is σ = 135188640. Its totient is φ = 45025020.

The previous prime is 90087883. The next prime is 90087919. The reversal of 90087898 is 89878009.

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

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, 2488 + ... + 13651.

It is an arithmetic number, because the mean of its divisors is an integer number (16898580).

Almost surely, 2^90087898 is an apocalyptic number.

90087898 is a deficient number, since it is larger than the sum of its proper divisors (45100742).

90087898 is a wasteful number, since it uses less digits than its factorization.

90087898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18932.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 90087898 is about 9491.4644813116. The cubic root of 90087898 is about 448.2863184885.

The spelling of 90087898 in words is "ninety million, eighty-seven thousand, eight hundred ninety-eight".