1117908 has 48 divisors (see below), whose sum is σ = 3165120. Its totient is φ = 338400.

The previous prime is 1117901. The next prime is 1117913. The reversal of 1117908 is 8097111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (65940).

2^1117908 is an apocalyptic number.

1117908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1117908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582560).

1117908 is an abundant number, since it is smaller than the sum of its proper divisors (2047212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1117908 is a wasteful number, since it uses less digits than its factorization.

1117908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 1117908 is about 1057.3116853606. The cubic root of 1117908 is about 103.7851828227.

It can be divided in two parts, 1117 and 908, that added together give a square (2025 = 45²).

The spelling of 1117908 in words is "one million, one hundred seventeen thousand, nine hundred eight".