1021086 has 48 divisors (see below), whose sum is σ = 2515968. Its totient is φ = 307800.

The previous prime is 1021081. The next prime is 1021087. The reversal of 1021086 is 6801201.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5251 + ... + 5441.

It is an arithmetic number, because the mean of its divisors is an integer number (52416).

2^1021086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257984).

1021086 is an abundant number, since it is smaller than the sum of its proper divisors (1494882).

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

1021086 is a wasteful number, since it uses less digits than its factorization.

1021086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1021086 is about 1010.4880009184. The cubic root of 1021086 is about 100.6979835219.

Adding to 1021086 its reverse (6801201), we get a palindrome (7822287).

It can be divided in two parts, 10210 and 86, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 1021086 in words is "one million, twenty-one thousand, eighty-six".