431971396 has 6 divisors (see below), whose sum is σ = 755949950. Its totient is φ = 215985696.

The previous prime is 431971387. The next prime is 431971409. The reversal of 431971396 is 693179134.

It can be written as a sum of positive squares in only one way, i.e., 231465796 + 200505600 = 15214^2 + 14160^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53996421 + ... + 53996428.

Almost surely, 2^431971396 is an apocalyptic number.

It is an amenable number.

431971396 is a deficient number, since it is larger than the sum of its proper divisors (323978554).

431971396 is a wasteful number, since it uses less digits than its factorization.

431971396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107992853 (or 107992851 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 431971396 is about 20783.9215741399. The cubic root of 431971396 is about 755.9359449475.

The spelling of 431971396 in words is "four hundred thirty-one million, nine hundred seventy-one thousand, three hundred ninety-six".