431972327 has 2 divisors, whose sum is σ = 431972328. Its totient is φ = 431972326.

The previous prime is 431972311. The next prime is 431972377. The reversal of 431972327 is 723279134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431972327 - 2⁴ = 431972311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431972377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215986163 + 215986164.

It is an arithmetic number, because the mean of its divisors is an integer number (215986164).

Almost surely, 2^431972327 is an apocalyptic number.

431972327 is a deficient number, since it is larger than the sum of its proper divisors (1).

431972327 is an equidigital number, since it uses as much as digits as its factorization.

431972327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 431972327 is about 20783.9439712486. The cubic root of 431972327 is about 755.9364880204.

The spelling of 431972327 in words is "four hundred thirty-one million, nine hundred seventy-two thousand, three hundred twenty-seven".