998079471 has 6 divisors (see below), whose sum is σ = 1441670360. Its totient is φ = 665386308.

The previous prime is 998079449. The next prime is 998079487. The reversal of 998079471 is 174970899.

998079471 is a `hidden beast` number, since 99 + 80 + 7 + 9 + 471 = 666.

It is not a de Polignac number, because 998079471 - 2⁷ = 998079343 is a prime.

It is a super-3 number, since 3×998079471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998079491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55448851 + ... + 55448868.

Almost surely, 2^998079471 is an apocalyptic number.

998079471 is a deficient number, since it is larger than the sum of its proper divisors (443590889).

998079471 is a wasteful number, since it uses less digits than its factorization.

998079471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110897725 (or 110897722 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 998079471 is about 31592.3957780982. The cubic root of 998079471 is about 999.3594134031.

It can be divided in two parts, 99807 and 9471, that added together give a triangular number (109278 = T₄₆₇).

The spelling of 998079471 in words is "nine hundred ninety-eight million, seventy-nine thousand, four hundred seventy-one".