6690769 has 8 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 6331776.

The previous prime is 6690767. The next prime is 6690787. The reversal of 6690769 is 9670966.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6690769 - 2¹ = 6690767 is a prime.

It is a super-2 number, since 2×6690769² = 89532779622722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6690767) 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, 732 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^6690769 is an apocalyptic number.

It is an amenable number.

6690769 is a deficient number, since it is larger than the sum of its proper divisors (365231).

6690769 is a wasteful number, since it uses less digits than its factorization.

6690769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 6690769 is about 2586.6520832922. The cubic root of 6690769 is about 188.4337446299.

The spelling of 6690769 in words is "six million, six hundred ninety thousand, seven hundred sixty-nine".