6696890 has 8 divisors (see below), whose sum is σ = 12054420. Its totient is φ = 2678752.

The previous prime is 6696871. The next prime is 6696917. The reversal of 6696890 is 986966.

It can be written as a sum of positive squares in 2 ways, for example, as 5480281 + 1216609 = 2341^2 + 1103^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334835 + ... + 334854.

Almost surely, 2^6696890 is an apocalyptic number.

6696890 is a deficient number, since it is larger than the sum of its proper divisors (5357530).

6696890 is a wasteful number, since it uses less digits than its factorization.

6696890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669696.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 6696890 is about 2587.8350024683. The cubic root of 6696890 is about 188.4911895166.

The spelling of 6696890 in words is "six million, six hundred ninety-six thousand, eight hundred ninety".