431880899 has 4 divisors (see below), whose sum is σ = 435281664. Its totient is φ = 428480136.

The previous prime is 431880881. The next prime is 431880907. The reversal of 431880899 is 998088134.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431880899 is a prime.

It is a super-2 number, since 2×431880899² = 373042221842096402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431883899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700192 + ... + 1700445.

It is an arithmetic number, because the mean of its divisors is an integer number (108820416).

Almost surely, 2^431880899 is an apocalyptic number.

431880899 is a deficient number, since it is larger than the sum of its proper divisors (3400765).

431880899 is a wasteful number, since it uses less digits than its factorization.

431880899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400764.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 431880899 is about 20781.7443685558. The cubic root of 431880899 is about 755.8831523215.

The spelling of 431880899 in words is "four hundred thirty-one million, eight hundred eighty thousand, eight hundred ninety-nine".