406853431 has 2 divisors, whose sum is σ = 406853432. Its totient is φ = 406853430.

The previous prime is 406853423. The next prime is 406853459. The reversal of 406853431 is 134358604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406853431 - 2³ = 406853423 is a prime.

It is a super-2 number, since 2×406853431² = 331059428632943522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406853131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203426715 + 203426716.

It is an arithmetic number, because the mean of its divisors is an integer number (203426716).

Almost surely, 2^406853431 is an apocalyptic number.

406853431 is a deficient number, since it is larger than the sum of its proper divisors (1).

406853431 is an equidigital number, since it uses as much as digits as its factorization.

406853431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 406853431 is about 20170.6080969315. The cubic root of 406853431 is about 740.9905355803.

The spelling of 406853431 in words is "four hundred six million, eight hundred fifty-three thousand, four hundred thirty-one".