6430889 has 4 divisors (see below), whose sum is σ = 6439056. Its totient is φ = 6422724.

The previous prime is 6430883. The next prime is 6430901. The reversal of 6430889 is 9880346.

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 6430889 - 2¹² = 6426793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6430883) 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, 2759 + ... + 4524.

It is an arithmetic number, because the mean of its divisors is an integer number (1609764).

Almost surely, 2^6430889 is an apocalyptic number.

It is an amenable number.

6430889 is a deficient number, since it is larger than the sum of its proper divisors (8167).

6430889 is an equidigital number, since it uses as much as digits as its factorization.

6430889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8166.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 6430889 is about 2535.9197542509. The cubic root of 6430889 is about 185.9617699977.

The spelling of 6430889 in words is "six million, four hundred thirty thousand, eight hundred eighty-nine".