98000031 has 4 divisors (see below), whose sum is σ = 130666712. Its totient is φ = 65333352.

The previous prime is 98000027. The next prime is 98000039. The reversal of 98000031 is 13000089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13000089 = 3 ⋅4333363.

It is not a de Polignac number, because 98000031 - 2² = 98000027 is a prime.

It is a super-2 number, since 2×98000031² = 19208012152001922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97999971 and 98000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98000039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16333336 + ... + 16333341.

It is an arithmetic number, because the mean of its divisors is an integer number (32666678).

Almost surely, 2^98000031 is an apocalyptic number.

98000031 is a deficient number, since it is larger than the sum of its proper divisors (32666681).

98000031 is a wasteful number, since it uses less digits than its factorization.

98000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32666680.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 98000031 is about 9899.4965023480. The cubic root of 98000031 is about 461.0436778193.

The spelling of 98000031 in words is "ninety-eight million, thirty-one", and thus it is an aban number and an uban number.