2862891 has 8 divisors (see below), whose sum is σ = 4241360. Its totient is φ = 1908576.

The previous prime is 2862887. The next prime is 2862917. The reversal of 2862891 is 1982682.

2862891 is a `hidden beast` number, since 28 + 628 + 9 + 1 = 666.

It is not a de Polignac number, because 2862891 - 2² = 2862887 is a prime.

It is a super-2 number, since 2×2862891² = 16392289755762, which contains 22 as substring.

It is a Duffinian number.

2862891 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2862491) 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, 52990 + ... + 53043.

It is an arithmetic number, because the mean of its divisors is an integer number (530170).

2^2862891 is an apocalyptic number.

2862891 is a deficient number, since it is larger than the sum of its proper divisors (1378469).

2862891 is a wasteful number, since it uses less digits than its factorization.

2862891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106042 (or 106036 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2862891 is about 1692.0079787046. The cubic root of 2862891 is about 141.9934368454.

The spelling of 2862891 in words is "two million, eight hundred sixty-two thousand, eight hundred ninety-one".