6432689 has 4 divisors (see below), whose sum is σ = 6466560. Its totient is φ = 6398820.

The previous prime is 6432649. The next prime is 6432691. The reversal of 6432689 is 9862346.

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 a de Polignac number, because none of the positive numbers 2^k-6432689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6432619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16649 + ... + 17030.

It is an arithmetic number, because the mean of its divisors is an integer number (1616640).

Almost surely, 2^6432689 is an apocalyptic number.

It is an amenable number.

6432689 is a deficient number, since it is larger than the sum of its proper divisors (33871).

6432689 is a wasteful number, since it uses less digits than its factorization.

6432689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33870.

The product of its digits is 62208, while the sum is 38.

The square root of 6432689 is about 2536.2746302402. The cubic root of 6432689 is about 185.9791185561.

The spelling of 6432689 in words is "six million, four hundred thirty-two thousand, six hundred eighty-nine".