431147998 has 8 divisors (see below), whose sum is σ = 649181808. Its totient is φ = 214754064.

The previous prime is 431147993. The next prime is 431148023. The reversal of 431147998 is 899741134.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431147993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409311 + ... + 410362.

It is an arithmetic number, because the mean of its divisors is an integer number (81147726).

Almost surely, 2^431147998 is an apocalyptic number.

431147998 is a deficient number, since it is larger than the sum of its proper divisors (218033810).

431147998 is a wasteful number, since it uses less digits than its factorization.

431147998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819938.

The product of its digits is 217728, while the sum is 46.

The square root of 431147998 is about 20764.1035924983. The cubic root of 431147998 is about 755.4553328408.

The spelling of 431147998 in words is "four hundred thirty-one million, one hundred forty-seven thousand, nine hundred ninety-eight".