995959831 has 2 divisors, whose sum is σ = 995959832. Its totient is φ = 995959830.

The previous prime is 995959799. The next prime is 995959859. The reversal of 995959831 is 138959599.

It is a strong prime.

It is an emirp because it is prime and its reverse (138959599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 995959831 - 2⁵ = 995959799 is a prime.

It is a super-2 number, since 2×995959831² = 1983871969931097122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (995959031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497979915 + 497979916.

It is an arithmetic number, because the mean of its divisors is an integer number (497979916).

Almost surely, 2^995959831 is an apocalyptic number.

995959831 is a deficient number, since it is larger than the sum of its proper divisors (1).

995959831 is an equidigital number, since it uses as much as digits as its factorization.

995959831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3936600, while the sum is 58.

The square root of 995959831 is about 31558.8312679668. The cubic root of 995959831 is about 998.6514592553.

The spelling of 995959831 in words is "nine hundred ninety-five million, nine hundred fifty-nine thousand, eight hundred thirty-one".