431081897 has 8 divisors (see below), whose sum is σ = 448904640. Its totient is φ = 413456400.

The previous prime is 431081891. The next prime is 431081909. The reversal of 431081897 is 798180134.

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 431081897 - 2⁴ = 431081881 is a prime.

It is a super-2 number, since 2×431081897² = 371663203842237218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431081891) 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, 44843 + ... + 53600.

It is an arithmetic number, because the mean of its divisors is an integer number (56113080).

Almost surely, 2^431081897 is an apocalyptic number.

It is an amenable number.

431081897 is a deficient number, since it is larger than the sum of its proper divisors (17822743).

431081897 is a wasteful number, since it uses less digits than its factorization.

431081897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98623.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 431081897 is about 20762.5118181785. The cubic root of 431081897 is about 755.4167235887.

The spelling of 431081897 in words is "four hundred thirty-one million, eighty-one thousand, eight hundred ninety-seven".