1117904 has 20 divisors (see below), whose sum is σ = 2189220. Its totient is φ = 552960.

The previous prime is 1117901. The next prime is 1117913. The reversal of 1117904 is 4097111.

It can be written as a sum of positive squares in 2 ways, for example, as 906304 + 211600 = 952^2 + 460^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1117904.

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 3 ways as a sum of consecutive naturals, for example, 1424 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (109461).

2^1117904 is an apocalyptic number.

It is an amenable number.

1117904 is a deficient number, since it is larger than the sum of its proper divisors (1071316).

1117904 is a wasteful number, since it uses less digits than its factorization.

1117904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 752 counting only the distinct ones).

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

The square root of 1117904 is about 1057.3097937691. The cubic root of 1117904 is about 103.7850590375.

The spelling of 1117904 in words is "one million, one hundred seventeen thousand, nine hundred four".