2487986 has 8 divisors (see below), whose sum is σ = 3783324. Its totient is φ = 1226880.

The previous prime is 2487983. The next prime is 2488009. The reversal of 2487986 is 6897842.

It can be written as a sum of positive squares in 2 ways, for example, as 2307361 + 180625 = 1519^2 + 425^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2487983) 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 3 ways as a sum of consecutive naturals, for example, 8375 + ... + 8666.

2^2487986 is an apocalyptic number.

2487986 is a deficient number, since it is larger than the sum of its proper divisors (1295338).

2487986 is a wasteful number, since it uses less digits than its factorization.

2487986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17116.

The product of its digits is 193536, while the sum is 44.

The square root of 2487986 is about 1577.3350943918. The cubic root of 2487986 is about 135.5031248854.

The spelling of 2487986 in words is "two million, four hundred eighty-seven thousand, nine hundred eighty-six".