407885431 has 2 divisors, whose sum is σ = 407885432. Its totient is φ = 407885430.

The previous prime is 407885417. The next prime is 407885461. The reversal of 407885431 is 134588704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 407885431 - 2¹¹ = 407883383 is a prime.

It is a super-2 number, since 2×407885431² = 332741049644111522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407885461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203942715 + 203942716.

It is an arithmetic number, because the mean of its divisors is an integer number (203942716).

Almost surely, 2^407885431 is an apocalyptic number.

407885431 is a deficient number, since it is larger than the sum of its proper divisors (1).

407885431 is an equidigital number, since it uses as much as digits as its factorization.

407885431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 407885431 is about 20196.1736722578. The cubic root of 407885431 is about 741.6165239733.

The spelling of 407885431 in words is "four hundred seven million, eight hundred eighty-five thousand, four hundred thirty-one".