411557431 has 2 divisors, whose sum is σ = 411557432. Its totient is φ = 411557430.

The previous prime is 411557389. The next prime is 411557491. The reversal of 411557431 is 134755114.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 411557431 - 2¹⁷ = 411426359 is a prime.

It is a super-2 number, since 2×411557431² = 338759038022639522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 411557393 and 411557402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411557491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205778715 + 205778716.

It is an arithmetic number, because the mean of its divisors is an integer number (205778716).

Almost surely, 2^411557431 is an apocalyptic number.

411557431 is a deficient number, since it is larger than the sum of its proper divisors (1).

411557431 is an equidigital number, since it uses as much as digits as its factorization.

411557431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 411557431 is about 20286.8782960809. The cubic root of 411557431 is about 743.8353533756.

The spelling of 411557431 in words is "four hundred eleven million, five hundred fifty-seven thousand, four hundred thirty-one".