2864491 has 12 divisors (see below), whose sum is σ = 3398112. Its totient is φ = 2406768.

The previous prime is 2864479. The next prime is 2864527. The reversal of 2864491 is 1944682.

It is not a de Polignac number, because 2864491 - 2⁷ = 2864363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864401) 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, 2046 + ... + 3148.

It is an arithmetic number, because the mean of its divisors is an integer number (283176).

2^2864491 is an apocalyptic number.

2864491 is a deficient number, since it is larger than the sum of its proper divisors (533621).

2864491 is a wasteful number, since it uses less digits than its factorization.

2864491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1163 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 2864491 is about 1692.4807236716. The cubic root of 2864491 is about 142.0198841427.

The spelling of 2864491 in words is "two million, eight hundred sixty-four thousand, four hundred ninety-one".