6791690 has 8 divisors (see below), whose sum is σ = 12225060. Its totient is φ = 2716672.

The previous prime is 6791689. The next prime is 6791699. The reversal of 6791690 is 961976.

It can be written as a sum of positive squares in 2 ways, for example, as 6507601 + 284089 = 2551^2 + 533^2 .

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

It is a super-2 number, since 2×6791690² = 92254106112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6791699) 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, 339575 + ... + 339594.

Almost surely, 2^6791690 is an apocalyptic number.

6791690 is a deficient number, since it is larger than the sum of its proper divisors (5433370).

6791690 is a wasteful number, since it uses less digits than its factorization.

6791690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679176.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 6791690 is about 2606.0871052212. The cubic root of 6791690 is about 189.3764414781.

The spelling of 6791690 in words is "six million, seven hundred ninety-one thousand, six hundred ninety".