431664353 has 8 divisors (see below), whose sum is σ = 434678400. Its totient is φ = 428660848.

The previous prime is 431664349. The next prime is 431664371. The reversal of 431664353 is 353466134.

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 431664353 - 2² = 431664349 is a prime.

It is a super-2 number, since 2×431664353² = 372668227301817218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431669353) 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, 90650 + ... + 95292.

It is an arithmetic number, because the mean of its divisors is an integer number (54334800).

Almost surely, 2^431664353 is an apocalyptic number.

It is an amenable number.

431664353 is a deficient number, since it is larger than the sum of its proper divisors (3014047).

431664353 is a wasteful number, since it uses less digits than its factorization.

431664353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271.

The product of its digits is 77760, while the sum is 35.

The square root of 431664353 is about 20776.5337099334. The cubic root of 431664353 is about 755.7567973950.

The spelling of 431664353 in words is "four hundred thirty-one million, six hundred sixty-four thousand, three hundred fifty-three".