2855961 has 12 divisors (see below), whose sum is σ = 4146688. Its totient is φ = 1894104.

The previous prime is 2855953. The next prime is 2855989. The reversal of 2855961 is 1695582.

It is a happy number.

It is not a de Polignac number, because 2855961 - 2³ = 2855953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2855911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1296 + ... + 2718.

2^2855961 is an apocalyptic number.

It is an amenable number.

2855961 is a deficient number, since it is larger than the sum of its proper divisors (1290727).

2855961 is a wasteful number, since it uses less digits than its factorization.

2855961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1649 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 2855961 is about 1689.9588752393. The cubic root of 2855961 is about 141.8787730824.

The spelling of 2855961 in words is "two million, eight hundred fifty-five thousand, nine hundred sixty-one".