431600397 has 8 divisors (see below), whose sum is σ = 576728256. Its totient is φ = 287103072.

The previous prime is 431600381. The next prime is 431600401. The reversal of 431600397 is 793006134.

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

It is not a de Polignac number, because 431600397 - 2⁴ = 431600381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431600297) 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, 156033 + ... + 158774.

It is an arithmetic number, because the mean of its divisors is an integer number (72091032).

Almost surely, 2^431600397 is an apocalyptic number.

It is an amenable number.

431600397 is a deficient number, since it is larger than the sum of its proper divisors (145127859).

431600397 is a wasteful number, since it uses less digits than its factorization.

431600397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315267.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 431600397 is about 20774.9945126347. The cubic root of 431600397 is about 755.7194708868.

The spelling of 431600397 in words is "four hundred thirty-one million, six hundred thousand, three hundred ninety-seven".