2604999 has 8 divisors (see below), whose sum is σ = 3498880. Its totient is φ = 1723896.

The previous prime is 2604997. The next prime is 2605007. The reversal of 2604999 is 9994062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2604999 - 2¹ = 2604997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2604997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2707 + ... + 3540.

It is an arithmetic number, because the mean of its divisors is an integer number (437360).

2^2604999 is an apocalyptic number.

2604999 is a deficient number, since it is larger than the sum of its proper divisors (893881).

2604999 is a wasteful number, since it uses less digits than its factorization.

2604999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 2604999 is about 1614.0009293678. Note that the first 3 decimals coincide. The cubic root of 2604999 is about 137.5949580979.

The spelling of 2604999 in words is "two million, six hundred four thousand, nine hundred ninety-nine".