6696628 has 6 divisors (see below), whose sum is σ = 11719106. Its totient is φ = 3348312.

The previous prime is 6696619. The next prime is 6696637. The reversal of 6696628 is 8266966.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6696619) and next prime (6696637).

It can be written as a sum of positive squares in only one way, i.e., 3833764 + 2862864 = 1958^2 + 1692^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837075 + ... + 837082.

Almost surely, 2^6696628 is an apocalyptic number.

It is an amenable number.

6696628 is a deficient number, since it is larger than the sum of its proper divisors (5022478).

6696628 is a wasteful number, since it uses less digits than its factorization.

6696628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674161 (or 1674159 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 6696628 is about 2587.7843805078. The cubic root of 6696628 is about 188.4887313937.

The spelling of 6696628 in words is "six million, six hundred ninety-six thousand, six hundred twenty-eight".