6406769 has 8 divisors (see below), whose sum is σ = 6571008. Its totient is φ = 6244560.

The previous prime is 6406759. The next prime is 6406787. The reversal of 6406769 is 9676046.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6406769 is a prime.

It is a super-2 number, since 2×6406769² = 82093378038722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6406759) 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, 7334 + ... + 8160.

It is an arithmetic number, because the mean of its divisors is an integer number (821376).

Almost surely, 2^6406769 is an apocalyptic number.

It is an amenable number.

6406769 is a deficient number, since it is larger than the sum of its proper divisors (164239).

6406769 is a wasteful number, since it uses less digits than its factorization.

6406769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 6406769 is about 2531.1596156703. The cubic root of 6406769 is about 185.7289863539.

The spelling of 6406769 in words is "six million, four hundred six thousand, seven hundred sixty-nine".