1086690 has 64 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 253440.

The previous prime is 1086689. The next prime is 1086703. The reversal of 1086690 is 966801.

It is a super-2 number, since 2×1086690² = 2361790312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12166 + ... + 12254.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2^1086690 is an apocalyptic number.

1086690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1086690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477440).

1086690 is an abundant number, since it is smaller than the sum of its proper divisors (1868190).

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

1086690 is a wasteful number, since it uses less digits than its factorization.

1086690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1086690 is about 1042.4442431133. Note that the first 3 decimals coincide. The cubic root of 1086690 is about 102.8099678949.

The spelling of 1086690 in words is "one million, eighty-six thousand, six hundred ninety".