1049987 has 4 divisors (see below), whose sum is σ = 1053216. Its totient is φ = 1046760.

The previous prime is 1049977. The next prime is 1049999. The reversal of 1049987 is 7899401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7899401 = 43 ⋅183707.

It is a cyclic number.

It is not a de Polignac number, because 1049987 - 2¹⁰ = 1048963 is a prime.

It is a super-2 number, since 2×1049987² = 2204945400338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1049987.

It is not an unprimeable number, because it can be changed into a prime (1049977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064 + ... + 1797.

It is an arithmetic number, because the mean of its divisors is an integer number (263304).

2^1049987 is an apocalyptic number.

1049987 is a deficient number, since it is larger than the sum of its proper divisors (3229).

1049987 is an equidigital number, since it uses as much as digits as its factorization.

1049987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1049987 is about 1024.6887332259. The cubic root of 1049987 is about 101.6392162146.

The spelling of 1049987 in words is "one million, forty-nine thousand, nine hundred eighty-seven".