980197831 has 8 divisors (see below), whose sum is σ = 1044578304. Its totient is φ = 917631000.

The previous prime is 980197819. The next prime is 980197861. The reversal of 980197831 is 138791089.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 980197831 - 2¹⁵ = 980165063 is a prime.

It is a super-2 number, since 2×980197831² = 1921575575794209122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980197861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452295 + ... + 454456.

It is an arithmetic number, because the mean of its divisors is an integer number (130572288).

Almost surely, 2^980197831 is an apocalyptic number.

980197831 is a deficient number, since it is larger than the sum of its proper divisors (64380473).

980197831 is a wasteful number, since it uses less digits than its factorization.

980197831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906821.

The product of its (nonzero) digits is 108864, while the sum is 46.

The square root of 980197831 is about 31308.1112652935. Note that the first 3 decimals coincide. The cubic root of 980197831 is about 993.3552217174.

The spelling of 980197831 in words is "nine hundred eighty million, one hundred ninety-seven thousand, eight hundred thirty-one".