90479898 has 12 divisors (see below), whose sum is σ = 196039818. Its totient is φ = 30159960.

The previous prime is 90479887. The next prime is 90479929. The reversal of 90479898 is 89897409.

90479898 is a `hidden beast` number, since 90 + 479 + 89 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 82029249 + 8450649 = 9057^2 + 2907^2 .

It is a super-2 number, since 2×90479898² = 16373223884180808, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 2513313 + ... + 2513348.

Almost surely, 2^90479898 is an apocalyptic number.

90479898 is an abundant number, since it is smaller than the sum of its proper divisors (105559920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90479898 is a wasteful number, since it uses less digits than its factorization.

90479898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026669 (or 5026666 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 90479898 is about 9512.0921988803. The cubic root of 90479898 is about 448.9355879711.

The spelling of 90479898 in words is "ninety million, four hundred seventy-nine thousand, eight hundred ninety-eight".