2621087 has 4 divisors (see below), whose sum is σ = 2995536. Its totient is φ = 2246640.

The previous prime is 2621063. The next prime is 2621119. The reversal of 2621087 is 7801262.

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

It is a cyclic number.

It is not a de Polignac number, because 2621087 - 2⁶ = 2621023 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 (2621027) 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 3 ways as a sum of consecutive naturals, for example, 187214 + ... + 187227.

It is an arithmetic number, because the mean of its divisors is an integer number (748884).

2^2621087 is an apocalyptic number.

2621087 is a deficient number, since it is larger than the sum of its proper divisors (374449).

2621087 is an equidigital number, since it uses as much as digits as its factorization.

2621087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374448.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2621087 is about 1618.9771462254. The cubic root of 2621087 is about 137.8776307937.

The spelling of 2621087 in words is "two million, six hundred twenty-one thousand, eighty-seven".