1086990 has 32 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 274464.

The previous prime is 1086989. The next prime is 1086991. The reversal of 1086990 is 996801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1086989) and next prime (1086991).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (85860).

2^1086990 is an apocalyptic number.

1086990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1086990 is an abundant number, since it is smaller than the sum of its proper divisors (1660530).

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

1086990 is a wasteful number, since it uses less digits than its factorization.

1086990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1086990 is about 1042.5881257716. The cubic root of 1086990 is about 102.8194278613.

The spelling of 1086990 in words is "one million, eighty-six thousand, nine hundred ninety".