2487641 has 8 divisors (see below), whose sum is σ = 2723784. Its totient is φ = 2257920.

The previous prime is 2487637. The next prime is 2487659. The reversal of 2487641 is 1467842.

It can be written as a sum of positive squares in 4 ways, for example, as 177241 + 2310400 = 421^2 + 1520^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2487641 - 2² = 2487637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2487598 and 2487607.

It is not an unprimeable number, because it can be changed into a prime (2487601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776 + ... + 2361.

It is an arithmetic number, because the mean of its divisors is an integer number (340473).

2^2487641 is an apocalyptic number.

It is an amenable number.

2487641 is a deficient number, since it is larger than the sum of its proper divisors (236143).

2487641 is a wasteful number, since it uses less digits than its factorization.

2487641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211.

The product of its digits is 10752, while the sum is 32.

The square root of 2487641 is about 1577.2257289304. The cubic root of 2487641 is about 135.4968613535.

The spelling of 2487641 in words is "two million, four hundred eighty-seven thousand, six hundred forty-one".