998946129 has 12 divisors (see below), whose sum is σ = 1414886864. Its totient is φ = 626789184.

The previous prime is 998946127. The next prime is 998946161. The reversal of 998946129 is 921649899.

It is not a de Polignac number, because 998946129 - 2¹ = 998946127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998946127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575227 + ... + 576960.

Almost surely, 2^998946129 is an apocalyptic number.

It is an amenable number.

998946129 is a deficient number, since it is larger than the sum of its proper divisors (415940735).

998946129 is a wasteful number, since it uses less digits than its factorization.

998946129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152224 (or 1152207 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 57.

The square root of 998946129 is about 31606.1090455627. The cubic root of 998946129 is about 999.6485861895.

The spelling of 998946129 in words is "nine hundred ninety-eight million, nine hundred forty-six thousand, one hundred twenty-nine".