2855491 has 8 divisors (see below), whose sum is σ = 3030480. Its totient is φ = 2683008.

The previous prime is 2855483. The next prime is 2855497. The reversal of 2855491 is 1945582.

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

It is not a de Polignac number, because 2855491 - 2³ = 2855483 is a prime.

It is a Duffinian number.

2855491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2855497) 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, 2055 + ... + 3151.

It is an arithmetic number, because the mean of its divisors is an integer number (378810).

2^2855491 is an apocalyptic number.

2855491 is a deficient number, since it is larger than the sum of its proper divisors (174989).

2855491 is a wasteful number, since it uses less digits than its factorization.

2855491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its digits is 14400, while the sum is 34.

The square root of 2855491 is about 1689.8198128795. The cubic root of 2855491 is about 141.8709897500.

Subtracting from 2855491 its reverse (1945582), we obtain a palindrome (909909).

It can be divided in two parts, 285 and 5491, that added together give a square (5776 = 76²).

The spelling of 2855491 in words is "two million, eight hundred fifty-five thousand, four hundred ninety-one".