6697858 has 4 divisors (see below), whose sum is σ = 10046790. Its totient is φ = 3348928.

The previous prime is 6697843. The next prime is 6697877. The reversal of 6697858 is 8587966.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3932289 + 2765569 = 1983^2 + 1663^2 .

It is a super-2 number, since 2×6697858² = 89722603576328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1674463 + ... + 1674466.

Almost surely, 2^6697858 is an apocalyptic number.

6697858 is a deficient number, since it is larger than the sum of its proper divisors (3348932).

6697858 is a wasteful number, since it uses less digits than its factorization.

6697858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348931.

The product of its digits is 725760, while the sum is 49.

The square root of 6697858 is about 2588.0220246358. The cubic root of 6697858 is about 188.5002708803.

The spelling of 6697858 in words is "six million, six hundred ninety-seven thousand, eight hundred fifty-eight".