998070931 has 64 divisors (see below), whose sum is σ = 1306368000. Its totient is φ = 748500480.

The previous prime is 998070929. The next prime is 998070971. The reversal of 998070931 is 139070899.

It is not a de Polignac number, because 998070931 - 2¹ = 998070929 is a prime.

It is a super-4 number, since 4×998070931⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998070971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4175910 + ... + 4176148.

It is an arithmetic number, because the mean of its divisors is an integer number (20412000).

Almost surely, 2^998070931 is an apocalyptic number.

998070931 is the 19981-st heptagonal number.

998070931 is a deficient number, since it is larger than the sum of its proper divisors (308297069).

998070931 is a wasteful number, since it uses less digits than its factorization.

998070931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 998070931 is about 31592.2606187022. The cubic root of 998070931 is about 999.3565630777.

The spelling of 998070931 in words is "nine hundred ninety-eight million, seventy thousand, nine hundred thirty-one".