2904987 has 4 divisors (see below), whose sum is σ = 3873320. Its totient is φ = 1936656.

The previous prime is 2904949. The next prime is 2904989. The reversal of 2904987 is 7894092.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2904987 - 2¹⁶ = 2839451 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2904989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484162 + ... + 484167.

It is an arithmetic number, because the mean of its divisors is an integer number (968330).

2^2904987 is an apocalyptic number.

2904987 is a deficient number, since it is larger than the sum of its proper divisors (968333).

2904987 is an equidigital number, since it uses as much as digits as its factorization.

2904987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968332.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2904987 is about 1704.4022412564. The cubic root of 2904987 is about 142.6860113179.

The spelling of 2904987 in words is "two million, nine hundred four thousand, nine hundred eighty-seven".