2656745 has 16 divisors (see below), whose sum is σ = 3924480. Its totient is φ = 1681344.

The previous prime is 2656729. The next prime is 2656757. The reversal of 2656745 is 5476562.

It is not a de Polignac number, because 2656745 - 2⁴ = 2656729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2465 + ... + 3374.

It is an arithmetic number, because the mean of its divisors is an integer number (245280).

2^2656745 is an apocalyptic number.

It is an amenable number.

2656745 is a deficient number, since it is larger than the sum of its proper divisors (1267735).

2656745 is a wasteful number, since it uses less digits than its factorization.

2656745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864.

The product of its digits is 50400, while the sum is 35.

The square root of 2656745 is about 1629.9524532943. The cubic root of 2656745 is about 138.5000586479.

The spelling of 2656745 in words is "two million, six hundred fifty-six thousand, seven hundred forty-five".