431473927 has 2 divisors, whose sum is σ = 431473928. Its totient is φ = 431473926.

The previous prime is 431473921. The next prime is 431473961. The reversal of 431473927 is 729374134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431473927 - 2⁷ = 431473799 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431473927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431473921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215736963 + 215736964.

It is an arithmetic number, because the mean of its divisors is an integer number (215736964).

Almost surely, 2^431473927 is an apocalyptic number.

431473927 is a deficient number, since it is larger than the sum of its proper divisors (1).

431473927 is an equidigital number, since it uses as much as digits as its factorization.

431473927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 431473927 is about 20771.9504861725. The cubic root of 431473927 is about 755.6456486050.

It can be divided in two parts, 43147 and 3927, that added together give a palindrome (47074).

The spelling of 431473927 in words is "four hundred thirty-one million, four hundred seventy-three thousand, nine hundred twenty-seven".