1083620 has 12 divisors (see below), whose sum is σ = 2275644. Its totient is φ = 433440.

The previous prime is 1083613. The next prime is 1083659. The reversal of 1083620 is 263801.

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 952576 = 362^2 + 976^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 54181 = 1083620 / (1 + 0 + 8 + 3 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1083592 and 1083601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27071 + ... + 27110.

It is an arithmetic number, because the mean of its divisors is an integer number (189637).

2^1083620 is an apocalyptic number.

1083620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1083620 is an abundant number, since it is smaller than the sum of its proper divisors (1192024).

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

1083620 is a wasteful number, since it uses less digits than its factorization.

1083620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54190 (or 54188 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1083620 is about 1040.9707008365. The cubic root of 1083620 is about 102.7130606833.

The spelling of 1083620 in words is "one million, eighty-three thousand, six hundred twenty".