2656997 has 4 divisors (see below), whose sum is σ = 3036576. Its totient is φ = 2277420.

The previous prime is 2656993. The next prime is 2657003. The reversal of 2656997 is 7996562.

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 a cyclic number.

It is not a de Polignac number, because 2656997 - 2² = 2656993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656991) 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, 189779 + ... + 189792.

It is an arithmetic number, because the mean of its divisors is an integer number (759144).

2^2656997 is an apocalyptic number.

It is an amenable number.

2656997 is a deficient number, since it is larger than the sum of its proper divisors (379579).

2656997 is an equidigital number, since it uses as much as digits as its factorization.

2656997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379578.

The product of its digits is 204120, while the sum is 44.

The square root of 2656997 is about 1630.0297543297. The cubic root of 2656997 is about 138.5044375541.

The spelling of 2656997 in words is "two million, six hundred fifty-six thousand, nine hundred ninety-seven".