1117409 has 8 divisors (see below), whose sum is σ = 1227840. Its totient is φ = 1012176.

The previous prime is 1117379. The next prime is 1117433. The reversal of 1117409 is 9047111.

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 1117409 - 2⁸ = 1117153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117439) 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, 842 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (153480).

2^1117409 is an apocalyptic number.

1117409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1117409 is a deficient number, since it is larger than the sum of its proper divisors (110431).

1117409 is a wasteful number, since it uses less digits than its factorization.

1117409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1117409 is about 1057.0756831940. The cubic root of 1117409 is about 103.7697383455.

The spelling of 1117409 in words is "one million, one hundred seventeen thousand, four hundred nine".