406504831 has 2 divisors, whose sum is σ = 406504832. Its totient is φ = 406504830.

The previous prime is 406504817. The next prime is 406504933. The reversal of 406504831 is 138405604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406504831 - 2²⁵ = 372950399 is a prime.

It is a super-2 number, since 2×406504831² = 330492355252677122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 406504793 and 406504802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406504801) 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, 203252415 + 203252416.

It is an arithmetic number, because the mean of its divisors is an integer number (203252416).

Almost surely, 2^406504831 is an apocalyptic number.

406504831 is a deficient number, since it is larger than the sum of its proper divisors (1).

406504831 is an equidigital number, since it uses as much as digits as its factorization.

406504831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 406504831 is about 20161.9649588030. The cubic root of 406504831 is about 740.7788433663.

The spelling of 406504831 in words is "four hundred six million, five hundred four thousand, eight hundred thirty-one".