6677690 has 8 divisors (see below), whose sum is σ = 12019860. Its totient is φ = 2671072.

The previous prime is 6677677. The next prime is 6677707. The reversal of 6677690 is 967766.

It can be written as a sum of positive squares in 2 ways, for example, as 6661561 + 16129 = 2581^2 + 127^2 .

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

It is a super-2 number, since 2×6677690² = 89183087472200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333875 + ... + 333894.

Almost surely, 2^6677690 is an apocalyptic number.

6677690 is a deficient number, since it is larger than the sum of its proper divisors (5342170).

6677690 is a wasteful number, since it uses less digits than its factorization.

6677690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667776.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 6677690 is about 2584.1226751066. The cubic root of 6677690 is about 188.3108821925.

It can be divided in two parts, 66776 and 90, that added together give a palindrome (66866).

The spelling of 6677690 in words is "six million, six hundred seventy-seven thousand, six hundred ninety".