431307097 has 6 divisors (see below), whose sum is σ = 467036862. Its totient is φ = 398129472.

The previous prime is 431307043. The next prime is 431307137. The reversal of 431307097 is 790703134.

It can be written as a sum of positive squares in 3 ways, for example, as 36529936 + 394777161 = 6044^2 + 19869^2 .

It is not a de Polignac number, because 431307097 - 2⁷ = 431306969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431307007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1275888 + ... + 1276225.

It is an arithmetic number, because the mean of its divisors is an integer number (77839477).

Almost surely, 2^431307097 is an apocalyptic number.

It is an amenable number.

431307097 is a deficient number, since it is larger than the sum of its proper divisors (35729765).

431307097 is a wasteful number, since it uses less digits than its factorization.

431307097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552139 (or 2552126 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 431307097 is about 20767.9343460056. The cubic root of 431307097 is about 755.5482455664.

The spelling of 431307097 in words is "four hundred thirty-one million, three hundred seven thousand, ninety-seven".