2604987 has 48 divisors (see below), whose sum is σ = 4924800. Its totient is φ = 1345680.

The previous prime is 2604977. The next prime is 2604997. The reversal of 2604987 is 7894062.

It is an interprime number because it is at equal distance from previous prime (2604977) and next prime (2604997).

It is not a de Polignac number, because 2604987 - 2⁸ = 2604731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2604907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14464 + ... + 14642.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^2604987 is an apocalyptic number.

2604987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2604987 is a deficient number, since it is larger than the sum of its proper divisors (2319813).

2604987 is a wasteful number, since it uses less digits than its factorization.

2604987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2604987 is about 1613.9972118935. The cubic root of 2604987 is about 137.5947468192.

The spelling of 2604987 in words is "two million, six hundred four thousand, nine hundred eighty-seven".