988537831 has 2 divisors, whose sum is σ = 988537832. Its totient is φ = 988537830.

The previous prime is 988537817. The next prime is 988537841. The reversal of 988537831 is 138735889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 988537831 - 2⁵ = 988537799 is a prime.

It is a super-2 number, since 2×988537831² = 1954414086636369122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988537801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494268915 + 494268916.

It is an arithmetic number, because the mean of its divisors is an integer number (494268916).

Almost surely, 2^988537831 is an apocalyptic number.

988537831 is a deficient number, since it is larger than the sum of its proper divisors (1).

988537831 is an equidigital number, since it uses as much as digits as its factorization.

988537831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 988537831 is about 31441.0214687755. The cubic root of 988537831 is about 996.1645854017.

The spelling of 988537831 in words is "nine hundred eighty-eight million, five hundred thirty-seven thousand, eight hundred thirty-one".