1048987 has 4 divisors (see below), whose sum is σ = 1077376. Its totient is φ = 1020600.

The previous prime is 1048963. The next prime is 1048991. The reversal of 1048987 is 7898401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048987 is a prime.

It is a super-2 number, since 2×1048987² = 2200747452338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 28351 = 1048987 / (1 + 0 + 4 + 8 + 9 + 8 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1048387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14139 + ... + 14212.

It is an arithmetic number, because the mean of its divisors is an integer number (269344).

2^1048987 is an apocalyptic number.

1048987 is a deficient number, since it is larger than the sum of its proper divisors (28389).

1048987 is an equidigital number, since it uses as much as digits as its factorization.

1048987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28388.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1048987 is about 1024.2006639326. The cubic root of 1048987 is about 101.6069391483.

The spelling of 1048987 in words is "one million, forty-eight thousand, nine hundred eighty-seven".