1086813 has 24 divisors (see below), whose sum is σ = 1933568. Its totient is φ = 572832.

The previous prime is 1086809. The next prime is 1086817. The reversal of 1086813 is 3186801.

It is an interprime number because it is at equal distance from previous prime (1086809) and next prime (1086817).

It is not a de Polignac number, because 1086813 - 2² = 1086809 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156 + ... + 1482.

2^1086813 is an apocalyptic number.

1086813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1086813 is a deficient number, since it is larger than the sum of its proper divisors (846755).

1086813 is a wasteful number, since it uses less digits than its factorization.

1086813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1086813 is about 1042.5032374050. The cubic root of 1086813 is about 102.8138466917.

The spelling of 1086813 in words is "one million, eighty-six thousand, eight hundred thirteen".