1018987 has 2 divisors, whose sum is σ = 1018988. Its totient is φ = 1018986.

The previous prime is 1018981. The next prime is 1018993. The reversal of 1018987 is 7898101.

It is a balanced prime because it is at equal distance from previous prime (1018981) and next prime (1018993).

It is a cyclic number.

It is not a de Polignac number, because 1018987 - 2⁷ = 1018859 is a prime.

It is an alternating number because its digits alternate between odd and even.

1018987 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1018981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509493 + 509494.

It is an arithmetic number, because the mean of its divisors is an integer number (509494).

2^1018987 is an apocalyptic number.

1018987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018987 is an equidigital number, since it uses as much as digits as its factorization.

1018987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 1018987 is about 1009.4488595268. The cubic root of 1018987 is about 100.6289361011.

The spelling of 1018987 in words is "one million, eighteen thousand, nine hundred eighty-seven".