989898146 has 16 divisors (see below), whose sum is σ = 1490627448. Its totient is φ = 493027200.

The previous prime is 989898131. The next prime is 989898149. The reversal of 989898146 is 641898989.

It can be written as a sum of positive squares in 4 ways, for example, as 250873921 + 739024225 = 15839^2 + 27185^2 .

It is not an unprimeable number, because it can be changed into a prime (989898149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932456 + ... + 933516.

Almost surely, 2^989898146 is an apocalyptic number.

989898146 is a deficient number, since it is larger than the sum of its proper divisors (500729302).

989898146 is a wasteful number, since it uses less digits than its factorization.

989898146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437.

The product of its digits is 8957952, while the sum is 62.

The square root of 989898146 is about 31462.6468371623. The cubic root of 989898146 is about 996.6213126617.

The spelling of 989898146 in words is "nine hundred eighty-nine million, eight hundred ninety-eight thousand, one hundred forty-six".