6690077 has 4 divisors (see below), whose sum is σ = 6696060. Its totient is φ = 6684096.

The previous prime is 6690067. The next prime is 6690107. The reversal of 6690077 is 7700966.

6690077 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4713241 + 1976836 = 2171^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 6690077 - 2⁸ = 6689821 is a prime.

It is a super-3 number, since 3×6690077³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690067) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 758 + ... + 3735.

It is an arithmetic number, because the mean of its divisors is an integer number (1674015).

Almost surely, 2^6690077 is an apocalyptic number.

It is an amenable number.

6690077 is a deficient number, since it is larger than the sum of its proper divisors (5983).

6690077 is a wasteful number, since it uses less digits than its factorization.

6690077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 6690077 is about 2586.5183161926. The cubic root of 6690077 is about 188.4272480848.

The spelling of 6690077 in words is "six million, six hundred ninety thousand, seventy-seven".