90016898 has 4 divisors (see below), whose sum is σ = 135025350. Its totient is φ = 45008448.

The previous prime is 90016897. The next prime is 90016919. The reversal of 90016898 is 89861009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 3396649 = 9307^2 + 1843^2 .

It is not an unprimeable number, because it can be changed into a prime (90016897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22504223 + ... + 22504226.

Almost surely, 2^90016898 is an apocalyptic number.

90016898 is a deficient number, since it is larger than the sum of its proper divisors (45008452).

90016898 is a wasteful number, since it uses less digits than its factorization.

90016898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45008451.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 90016898 is about 9487.7235415035. The cubic root of 90016898 is about 448.1685198552.

The spelling of 90016898 in words is "ninety million, sixteen thousand, eight hundred ninety-eight".