6690412 has 6 divisors (see below), whose sum is σ = 11708228. Its totient is φ = 3345204.

The previous prime is 6690379. The next prime is 6690427. The reversal of 6690412 is 2140966.

It is a super-2 number, since 2×6690412² = 89523225459488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836298 + ... + 836305.

Almost surely, 2^6690412 is an apocalyptic number.

It is an amenable number.

6690412 is a deficient number, since it is larger than the sum of its proper divisors (5017816).

6690412 is a wasteful number, since it uses less digits than its factorization.

6690412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672607 (or 1672605 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 6690412 is about 2586.5830742507. The cubic root of 6690412 is about 188.4303931445.

The spelling of 6690412 in words is "six million, six hundred ninety thousand, four hundred twelve".