6966657 has 6 divisors (see below), whose sum is σ = 10062962. Its totient is φ = 4644432.

The previous prime is 6966649. The next prime is 6966689. The reversal of 6966657 is 7566696.

It can be written as a sum of positive squares in only one way, i.e., 6843456 + 123201 = 2616^2 + 351^2 .

It is not a de Polignac number, because 6966657 - 2³ = 6966649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6966647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387028 + ... + 387045.

Almost surely, 2^6966657 is an apocalyptic number.

It is an amenable number.

6966657 is a deficient number, since it is larger than the sum of its proper divisors (3096305).

6966657 is a wasteful number, since it uses less digits than its factorization.

6966657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774079 (or 774076 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 6966657 is about 2639.4425547831. The cubic root of 6966657 is about 190.9889068235.

The spelling of 6966657 in words is "six million, nine hundred sixty-six thousand, six hundred fifty-seven".