2879811 has 24 divisors (see below), whose sum is σ = 4779840. Its totient is φ = 1652400.

The previous prime is 2879803. The next prime is 2879819. The reversal of 2879811 is 1189782.

It is an interprime number because it is at equal distance from previous prime (2879803) and next prime (2879819).

It is not a de Polignac number, because 2879811 - 2³ = 2879803 is a prime.

It is a super-2 number, since 2×2879811² = 16586622791442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2879819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1116 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (199160).

2^2879811 is an apocalyptic number.

2879811 is a deficient number, since it is larger than the sum of its proper divisors (1900029).

2879811 is a wasteful number, since it uses less digits than its factorization.

2879811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1564 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 2879811 is about 1697.0005892751. Note that the first 3 decimals coincide. The cubic root of 2879811 is about 142.2726198299.

The spelling of 2879811 in words is "two million, eight hundred seventy-nine thousand, eight hundred eleven".