2864505 has 16 divisors (see below), whose sum is σ = 5238144. Its totient is φ = 1309440.

The previous prime is 2864479. The next prime is 2864527. The reversal of 2864505 is 5054682.

It is not a de Polignac number, because 2864505 - 2⁵ = 2864473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13536 + ... + 13745.

It is an arithmetic number, because the mean of its divisors is an integer number (327384).

2^2864505 is an apocalyptic number.

It is an amenable number.

2864505 is a deficient number, since it is larger than the sum of its proper divisors (2373639).

2864505 is a wasteful number, since it uses less digits than its factorization.

2864505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27296.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2864505 is about 1692.4848596073. The cubic root of 2864505 is about 142.0201155131.

The spelling of 2864505 in words is "two million, eight hundred sixty-four thousand, five hundred five".