1020087 has 8 divisors (see below), whose sum is σ = 1511280. Its totient is φ = 680040.

The previous prime is 1020079. The next prime is 1020101. The reversal of 1020087 is 7800201.

It is not a de Polignac number, because 1020087 - 2³ = 1020079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18864 + ... + 18917.

It is an arithmetic number, because the mean of its divisors is an integer number (188910).

2^1020087 is an apocalyptic number.

1020087 is a deficient number, since it is larger than the sum of its proper divisors (491193).

1020087 is an equidigital number, since it uses as much as digits as its factorization.

1020087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37790 (or 37784 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1020087 is about 1009.9935643359. The cubic root of 1020087 is about 100.6651328412.

Adding to 1020087 its reverse (7800201), we get a palindrome (8820288).

The spelling of 1020087 in words is "one million, twenty thousand, eighty-seven".