6997656 has 16 divisors (see below), whose sum is σ = 17494200. Its totient is φ = 2332544.

The previous prime is 6997651. The next prime is 6997657. The reversal of 6997656 is 6567996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6997651) 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, 145761 + ... + 145808.

Almost surely, 2^6997656 is an apocalyptic number.

It is an amenable number.

6997656 is an abundant number, since it is smaller than the sum of its proper divisors (10496544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6997656 is a wasteful number, since it uses less digits than its factorization.

6997656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291578 (or 291574 counting only the distinct ones).

The product of its digits is 612360, while the sum is 48.

The square root of 6997656 is about 2645.3082996127. The cubic root of 6997656 is about 191.2717639378.

The spelling of 6997656 in words is "six million, nine hundred ninety-seven thousand, six hundred fifty-six".