431972371 has 8 divisors (see below), whose sum is σ = 450133920. Its totient is φ = 414028608.

The previous prime is 431972327. The next prime is 431972377. The reversal of 431972371 is 173279134.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431972371 - 2⁷ = 431972243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431972371.

It is not an unprimeable number, because it can be changed into a prime (431972377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50391 + ... + 58336.

It is an arithmetic number, because the mean of its divisors is an integer number (56266740).

Almost surely, 2^431972371 is an apocalyptic number.

431972371 is a deficient number, since it is larger than the sum of its proper divisors (18161549).

431972371 is a wasteful number, since it uses less digits than its factorization.

431972371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108893.

The product of its digits is 31752, while the sum is 37.

The square root of 431972371 is about 20783.9450297579. The cubic root of 431972371 is about 755.9365136865.

The spelling of 431972371 in words is "four hundred thirty-one million, nine hundred seventy-two thousand, three hundred seventy-one".