2487843621 has 24 divisors (see below), whose sum is σ = 3721745664. Its totient is φ = 1600391520.

The previous prime is 2487843607. The next prime is 2487843643. The reversal of 2487843621 is 1263487842.

It is a happy number.

It is not a de Polignac number, because 2487843621 - 2¹⁸ = 2487581477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487843601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11386 + ... + 71451.

It is an arithmetic number, because the mean of its divisors is an integer number (155072736).

Almost surely, 2^2487843621 is an apocalyptic number.

It is an amenable number.

2487843621 is a deficient number, since it is larger than the sum of its proper divisors (1233902043).

2487843621 is a wasteful number, since it uses less digits than its factorization.

2487843621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82961 (or 82958 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2487843621 is about 49878.2880720660. The cubic root of 2487843621 is about 1355.0054004133.

It can be divided in two parts, 248784 and 3621, that added together give a triangular number (252405 = T₇₁₀).

The spelling of 2487843621 in words is "two billion, four hundred eighty-seven million, eight hundred forty-three thousand, six hundred twenty-one".