2864687 has 24 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 2177280.

The previous prime is 2864683. The next prime is 2864689. The reversal of 2864687 is 7864682.

It is not a de Polignac number, because 2864687 - 2² = 2864683 is a prime.

Its product of digits (129024) is a multiple of the sum of its prime divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864681) 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, 15737 + ... + 15917.

It is an arithmetic number, because the mean of its divisors is an integer number (155610).

2^2864687 is an apocalyptic number.

2864687 is a deficient number, since it is larger than the sum of its proper divisors (869953).

2864687 is a wasteful number, since it uses less digits than its factorization.

2864687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 224 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 2864687 is about 1692.5386258517. The cubic root of 2864687 is about 142.0231232595.

The spelling of 2864687 in words is "two million, eight hundred sixty-four thousand, six hundred eighty-seven".