1002987 has 6 divisors (see below), whose sum is σ = 1448772. Its totient is φ = 668652.

The previous prime is 1002979. The next prime is 1003001. The reversal of 1002987 is 7892001.

It is not a de Polignac number, because 1002987 - 2³ = 1002979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002987.

It is not an unprimeable number, because it can be changed into a prime (1002917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55713 + ... + 55730.

It is an arithmetic number, because the mean of its divisors is an integer number (241462).

2^1002987 is an apocalyptic number.

1002987 is a deficient number, since it is larger than the sum of its proper divisors (445785).

1002987 is a wasteful number, since it uses less digits than its factorization.

1002987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111449 (or 111446 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1002987 is about 1001.4923863914. The cubic root of 1002987 is about 100.0994676956.

Adding to 1002987 its reverse (7892001), we get a palindrome (8894988).

The spelling of 1002987 in words is "one million, two thousand, nine hundred eighty-seven".