1086638 has 8 divisors (see below), whose sum is σ = 1862832. Its totient is φ = 465696.

The previous prime is 1086637. The next prime is 1086641. The reversal of 1086638 is 8366801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38795 + ... + 38822.

It is an arithmetic number, because the mean of its divisors is an integer number (232854).

2^1086638 is an apocalyptic number.

1086638 is a deficient number, since it is larger than the sum of its proper divisors (776194).

1086638 is an equidigital number, since it uses as much as digits as its factorization.

1086638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77626.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1086638 is about 1042.4193014330. The cubic root of 1086638 is about 102.8083279904.

The spelling of 1086638 in words is "one million, eighty-six thousand, six hundred thirty-eight".