6450689 has 8 divisors (see below), whose sum is σ = 7493568. Its totient is φ = 5438160.

The previous prime is 6450679. The next prime is 6450707. The reversal of 6450689 is 9860546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6450689 - 2¹² = 6446593 is a prime.

It is a super-2 number, since 2×6450689² = 83222777149442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6450629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7127 + ... + 7980.

It is an arithmetic number, because the mean of its divisors is an integer number (936696).

Almost surely, 2^6450689 is an apocalyptic number.

It is an amenable number.

6450689 is a deficient number, since it is larger than the sum of its proper divisors (1042879).

6450689 is a wasteful number, since it uses less digits than its factorization.

6450689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15175.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6450689 is about 2539.8206629603. The cubic root of 6450689 is about 186.1524264076.

The spelling of 6450689 in words is "six million, four hundred fifty thousand, six hundred eighty-nine".