6430931 has 4 divisors (see below), whose sum is σ = 6925632. Its totient is φ = 5936232.

The previous prime is 6430927. The next prime is 6430937. The reversal of 6430931 is 1390346.

6430931 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6430931 - 2² = 6430927 is a prime.

It is a super-2 number, since 2×6430931² = 82713747053522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6430931.

It is not an unprimeable number, because it can be changed into a prime (6430937) 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, 247331 + ... + 247356.

It is an arithmetic number, because the mean of its divisors is an integer number (1731408).

Almost surely, 2^6430931 is an apocalyptic number.

6430931 is a deficient number, since it is larger than the sum of its proper divisors (494701).

6430931 is a wasteful number, since it uses less digits than its factorization.

6430931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494700.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 6430931 is about 2535.9280352565. The cubic root of 6430931 is about 185.9621748343.

The spelling of 6430931 in words is "six million, four hundred thirty thousand, nine hundred thirty-one".