2864609 has 4 divisors (see below), whose sum is σ = 3125040. Its totient is φ = 2604180.

The previous prime is 2864599. The next prime is 2864623. The reversal of 2864609 is 9064682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2864609 - 2¹⁶ = 2799073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130199 + ... + 130220.

It is an arithmetic number, because the mean of its divisors is an integer number (781260).

2^2864609 is an apocalyptic number.

It is an amenable number.

2864609 is a deficient number, since it is larger than the sum of its proper divisors (260431).

2864609 is a wasteful number, since it uses less digits than its factorization.

2864609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260430.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2864609 is about 1692.5155833847. The cubic root of 2864609 is about 142.0218342409.

The spelling of 2864609 in words is "two million, eight hundred sixty-four thousand, six hundred nine".