2098831 has 16 divisors (see below), whose sum is σ = 2515968. Its totient is φ = 1713600.

The previous prime is 2098813. The next prime is 2098841. The reversal of 2098831 is 1388902.

It is not a de Polignac number, because 2098831 - 2¹⁷ = 1967759 is a prime.

It is a super-2 number, since 2×2098831² = 8810183133122, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2098793 and 2098802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20326 + ... + 20428.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

2^2098831 is an apocalyptic number.

2098831 is a deficient number, since it is larger than the sum of its proper divisors (417137).

2098831 is a wasteful number, since it uses less digits than its factorization.

2098831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2098831 is about 1448.7342751519. The cubic root of 2098831 is about 128.0341502304.

The spelling of 2098831 in words is "two million, ninety-eight thousand, eight hundred thirty-one".