1085720 has 16 divisors (see below), whose sum is σ = 2442960. Its totient is φ = 434272.

The previous prime is 1085719. The next prime is 1085737. The reversal of 1085720 is 275801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13532 + ... + 13611.

It is an arithmetic number, because the mean of its divisors is an integer number (152685).

2^1085720 is an apocalyptic number.

1085720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085720 is an abundant number, since it is smaller than the sum of its proper divisors (1357240).

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

1085720 is a wasteful number, since it uses less digits than its factorization.

1085720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27154 (or 27150 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1085720 is about 1041.9788865423. The cubic root of 1085720 is about 102.7793687496.

The spelling of 1085720 in words is "one million, eighty-five thousand, seven hundred twenty".