6890000690 has 16 divisors (see below), whose sum is σ = 12404152728. Its totient is φ = 2755522176.

The previous prime is 6890000659. The next prime is 6890000713. The reversal of 6890000690 is 960000986.

It can be written as a sum of positive squares in 4 ways, for example, as 6217480201 + 672520489 = 78851^2 + 25933^2 .

It is a super-2 number, since 2×6890000690² = 94944219016400952200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4004 + ... + 117456.

Almost surely, 2^6890000690 is an apocalyptic number.

6890000690 is a deficient number, since it is larger than the sum of its proper divisors (5514152038).

6890000690 is a wasteful number, since it uses less digits than its factorization.

6890000690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119533.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 6890000690 is about 83006.0280341133. The cubic root of 6890000690 is about 1902.8581811831.

The spelling of 6890000690 in words is "six billion, eight hundred ninety million, six hundred ninety", and thus it is an aban number.