90898203445 has 16 divisors (see below), whose sum is σ = 125017603200. Its totient is φ = 62151591744.

The previous prime is 90898203433. The next prime is 90898203527. The reversal of 90898203445 is 54430289809.

It is a cyclic number.

It is not a de Polignac number, because 90898203445 - 2²⁵ = 90864649013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90898203392 and 90898203401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3708547 + ... + 3732976.

It is an arithmetic number, because the mean of its divisors is an integer number (7813600200).

Almost surely, 2^90898203445 is an apocalyptic number.

It is an amenable number.

90898203445 is a deficient number, since it is larger than the sum of its proper divisors (34119399755).

90898203445 is a wasteful number, since it uses less digits than its factorization.

90898203445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7441884.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 90898203445 in words is "ninety billion, eight hundred ninety-eight million, two hundred three thousand, four hundred forty-five".