1116621 has 12 divisors (see below), whose sum is σ = 1759680. Its totient is φ = 676680.

The previous prime is 1116601. The next prime is 1116631. The reversal of 1116621 is 1266111.

1116621 is a `hidden beast` number, since 1 + 1 + 1 + 662 + 1 = 666.

It is not a de Polignac number, because 1116621 - 2¹¹ = 1114573 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1116594 and 1116603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5541 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (146640).

2^1116621 is an apocalyptic number.

1116621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1116621 is a deficient number, since it is larger than the sum of its proper divisors (643059).

1116621 is a wasteful number, since it uses less digits than its factorization.

1116621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296 (or 11293 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1116621 is about 1056.7028910720. The cubic root of 1116621 is about 103.7453397045.

The spelling of 1116621 in words is "one million, one hundred sixteen thousand, six hundred twenty-one".