1085724 has 36 divisors (see below), whose sum is σ = 2848664. Its totient is φ = 361584.

The previous prime is 1085719. The next prime is 1085737. The reversal of 1085724 is 4275801.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 11 ways as a sum of consecutive naturals, for example, 414 + ... + 1530.

2^1085724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1424332).

1085724 is an abundant number, since it is smaller than the sum of its proper divisors (1762940).

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

1085724 is a wasteful number, since it uses less digits than its factorization.

1085724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1085724 is about 1041.9808059653. The cubic root of 1085724 is about 102.7794949690.

It can be divided in two parts, 108 and 5724, that added together give a cube (5832 = 18³).

The spelling of 1085724 in words is "one million, eighty-five thousand, seven hundred twenty-four".