2855668 has 6 divisors (see below), whose sum is σ = 4997426. Its totient is φ = 1427832.

The previous prime is 2855653. The next prime is 2855683. The reversal of 2855668 is 8665582.

It is an interprime number because it is at equal distance from previous prime (2855653) and next prime (2855683).

It can be written as a sum of positive squares in only one way, i.e., 2196324 + 659344 = 1482^2 + 812^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2855668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356955 + ... + 356962.

2^2855668 is an apocalyptic number.

It is an amenable number.

2855668 is a deficient number, since it is larger than the sum of its proper divisors (2141758).

2855668 is a wasteful number, since it uses less digits than its factorization.

2855668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713921 (or 713919 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 2855668 is about 1689.8721845157. The cubic root of 2855668 is about 141.8739210201.

It can be divided in two parts, 28 and 55668, that added together give a square (55696 = 236²).

The spelling of 2855668 in words is "two million, eight hundred fifty-five thousand, six hundred sixty-eight".