1087020 has 120 divisors (see below), whose sum is σ = 3781008. Its totient is φ = 259200.

The previous prime is 1087019. The next prime is 1087027. The reversal of 1087020 is 207801.

It is a super-3 number, since 3×1087020³ = 3853309195333224000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1086984 and 1087002.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 183 × 33 × 180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087027) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17790 + ... + 17850.

2^1087020 is an apocalyptic number.

1087020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1890504).

1087020 is an abundant number, since it is smaller than the sum of its proper divisors (2693988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087020 is a wasteful number, since it uses less digits than its factorization.

1087020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 82 counting only the distinct ones).

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

The square root of 1087020 is about 1042.6025129454. The cubic root of 1087020 is about 102.8203737622.

The spelling of 1087020 in words is "one million, eighty-seven thousand, twenty".