431616427 has 8 divisors (see below), whose sum is σ = 471401712. Its totient is φ = 391922400.

The previous prime is 431616373. The next prime is 431616431. The reversal of 431616427 is 724616134.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431616427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431616392 and 431616401.

It is not an unprimeable number, because it can be changed into a prime (431616727) 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, 12724 + ... + 32017.

It is an arithmetic number, because the mean of its divisors is an integer number (58925214).

Almost surely, 2^431616427 is an apocalyptic number.

431616427 is a deficient number, since it is larger than the sum of its proper divisors (39785285).

431616427 is a wasteful number, since it uses less digits than its factorization.

431616427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45629.

The product of its digits is 24192, while the sum is 34.

The square root of 431616427 is about 20775.3803093951. The cubic root of 431616427 is about 755.7288267888.

The spelling of 431616427 in words is "four hundred thirty-one million, six hundred sixteen thousand, four hundred twenty-seven".