1117649 has 8 divisors (see below), whose sum is σ = 1213800. Its totient is φ = 1022976.

The previous prime is 1117609. The next prime is 1117657. The reversal of 1117649 is 9467111.

It can be written as a sum of positive squares in 4 ways, for example, as 117649 + 1000000 = 343^2 + 1000^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1117649 - 2²⁰ = 69073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117609) 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, 1649 + ... + 2225.

It is an arithmetic number, because the mean of its divisors is an integer number (151725).

2^1117649 is an apocalyptic number.

It is an amenable number.

1117649 is a deficient number, since it is larger than the sum of its proper divisors (96151).

1117649 is a wasteful number, since it uses less digits than its factorization.

1117649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its digits is 1512, while the sum is 29.

The square root of 1117649 is about 1057.1891978260. The cubic root of 1117649 is about 103.7771671247. Note that the first 3 decimals are identical.

The spelling of 1117649 in words is "one million, one hundred seventeen thousand, six hundred forty-nine".