431704961 has 4 divisors (see below), whose sum is σ = 432832512. Its totient is φ = 430577412.

The previous prime is 431704957. The next prime is 431704967. The reversal of 431704961 is 169407134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431704961 - 2² = 431704957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431704967) 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, 563201 + ... + 563966.

It is an arithmetic number, because the mean of its divisors is an integer number (108208128).

Almost surely, 2^431704961 is an apocalyptic number.

It is an amenable number.

431704961 is a deficient number, since it is larger than the sum of its proper divisors (1127551).

431704961 is a wasteful number, since it uses less digits than its factorization.

431704961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127550.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 431704961 is about 20777.5109433252. The cubic root of 431704961 is about 755.7804954446.

The spelling of 431704961 in words is "four hundred thirty-one million, seven hundred four thousand, nine hundred sixty-one".