998102900601 has 27 divisors (see below), whose sum is σ = 1507216416069. Its totient is φ = 636427456632.

The previous prime is 998102900567. The next prime is 998102900603. The reversal of 998102900601 is 106009201899.

The square root of 998102900601 is 999051.

It is a perfect power (a square), and thus also a powerful number.

998102900601 is a `hidden beast` number, since 9 + 9 + 8 + 10 + 29 + 0 + 0 + 601 = 666.

It is not a de Polignac number, because 998102900601 - 2¹⁷ = 998102769529 is a prime.

It is a super-2 number, since 2×998102900601² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (998102900603) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 68927280 + ... + 68941758.

Almost surely, 2^998102900601 is an apocalyptic number.

998102900601 is the 999051-st square number.

998102900601 is the 499526-th centered octagonal number.

It is an amenable number.

998102900601 is a deficient number, since it is larger than the sum of its proper divisors (509113515468).

998102900601 is an frugal number, since it uses more digits than its factorization.

998102900601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29010 (or 14505 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 998102900601 in words is "nine hundred ninety-eight billion, one hundred two million, nine hundred thousand, six hundred one".