6636697 has 4 divisors (see below), whose sum is σ = 6850816. Its totient is φ = 6422580.

The previous prime is 6636689. The next prime is 6636701. The reversal of 6636697 is 7966366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6636697 - 2³ = 6636689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6636667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107013 + ... + 107074.

It is an arithmetic number, because the mean of its divisors is an integer number (1712704).

Almost surely, 2^6636697 is an apocalyptic number.

It is an amenable number.

6636697 is a deficient number, since it is larger than the sum of its proper divisors (214119).

6636697 is a wasteful number, since it uses less digits than its factorization.

6636697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214118.

The product of its digits is 244944, while the sum is 43.

The square root of 6636697 is about 2576.1787593255. The cubic root of 6636697 is about 187.9247567462.

It can be divided in two parts, 66 and 36697, that added together give a palindrome (36763).

The spelling of 6636697 in words is "six million, six hundred thirty-six thousand, six hundred ninety-seven".