2487621 has 16 divisors (see below), whose sum is σ = 3464384. Its totient is φ = 1586304.

The previous prime is 2487619. The next prime is 2487623. The reversal of 2487621 is 1267842.

It is an interprime number because it is at equal distance from previous prime (2487619) and next prime (2487623).

It is not a de Polignac number, because 2487621 - 2¹ = 2487619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7950 + ... + 8256.

It is an arithmetic number, because the mean of its divisors is an integer number (216524).

2^2487621 is an apocalyptic number.

It is an amenable number.

2487621 is a deficient number, since it is larger than the sum of its proper divisors (976763).

2487621 is a wasteful number, since it uses less digits than its factorization.

2487621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its digits is 5376, while the sum is 30.

The square root of 2487621 is about 1577.2193886711. The cubic root of 2487621 is about 135.4964982324.

The spelling of 2487621 in words is "two million, four hundred eighty-seven thousand, six hundred twenty-one".