1172916 has 36 divisors (see below), whose sum is σ = 3063424. Its totient is φ = 378000.

The previous prime is 1172903. The next prime is 1172921. The reversal of 1172916 is 6192711.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1172916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591 + ... + 1641.

2^1172916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531712).

1172916 is an abundant number, since it is smaller than the sum of its proper divisors (1890508).

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

1172916 is a wasteful number, since it uses less digits than its factorization.

1172916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1087 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 1172916 is about 1083.0124653022. The cubic root of 1172916 is about 105.4602921777.

Subtracting from 1172916 its sum of digits (27), we obtain a square (1172889 = 1083²).

It can be divided in two parts, 11 and 72916, that added together give a palindrome (72927).

The spelling of 1172916 in words is "one million, one hundred seventy-two thousand, nine hundred sixteen".