6997636 has 24 divisors (see below), whose sum is σ = 12600000. Its totient is φ = 3399264.

The previous prime is 6997633. The next prime is 6997649. The reversal of 6997636 is 6367996.

It is not an unprimeable number, because it can be changed into a prime (6997631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35065 + ... + 35263.

It is an arithmetic number, because the mean of its divisors is an integer number (525000).

Almost surely, 2^6997636 is an apocalyptic number.

It is an amenable number.

6997636 is a deficient number, since it is larger than the sum of its proper divisors (5602364).

6997636 is a wasteful number, since it uses less digits than its factorization.

6997636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

The product of its digits is 367416, while the sum is 46.

The square root of 6997636 is about 2645.3045193323. The cubic root of 6997636 is about 191.2715817131.

The spelling of 6997636 in words is "six million, nine hundred ninety-seven thousand, six hundred thirty-six".