2855657 has 8 divisors (see below), whose sum is σ = 3405696. Its totient is φ = 2341152.

The previous prime is 2855653. The next prime is 2855683. The reversal of 2855657 is 7565582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2855657 - 2² = 2855653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2855657.

It is not an unprimeable number, because it can be changed into a prime (2855653) 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, 8708 + ... + 9029.

It is an arithmetic number, because the mean of its divisors is an integer number (425712).

2^2855657 is an apocalyptic number.

It is an amenable number.

2855657 is a deficient number, since it is larger than the sum of its proper divisors (550039).

2855657 is a wasteful number, since it uses less digits than its factorization.

2855657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17767.

The product of its digits is 84000, while the sum is 38.

The square root of 2855657 is about 1689.8689298286. The cubic root of 2855657 is about 141.8737388543.

The spelling of 2855657 in words is "two million, eight hundred fifty-five thousand, six hundred fifty-seven".