409196831 has 2 divisors, whose sum is σ = 409196832. Its totient is φ = 409196830.

The previous prime is 409196803. The next prime is 409196839. The reversal of 409196831 is 138691904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 409196831 - 2¹⁰ = 409195807 is a prime.

It is a super-2 number, since 2×409196831² = 334884093000885122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409196839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204598415 + 204598416.

It is an arithmetic number, because the mean of its divisors is an integer number (204598416).

Almost surely, 2^409196831 is an apocalyptic number.

409196831 is a deficient number, since it is larger than the sum of its proper divisors (1).

409196831 is an equidigital number, since it uses as much as digits as its factorization.

409196831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 409196831 is about 20228.6141640993. The cubic root of 409196831 is about 742.4104687098.

The spelling of 409196831 in words is "four hundred nine million, one hundred ninety-six thousand, eight hundred thirty-one".