1086621 has 8 divisors (see below), whose sum is σ = 1462560. Its totient is φ = 717552.

The previous prime is 1086619. The next prime is 1086637. The reversal of 1086621 is 1266801.

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

It is not a de Polignac number, because 1086621 - 2¹ = 1086619 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1086591 and 1086600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (182820).

2^1086621 is an apocalyptic number.

It is an amenable number.

1086621 is a deficient number, since it is larger than the sum of its proper divisors (375939).

1086621 is a wasteful number, since it uses less digits than its factorization.

1086621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1086621 is about 1042.4111472927. The cubic root of 1086621 is about 102.8077918564.

The spelling of 1086621 in words is "one million, eighty-six thousand, six hundred twenty-one".