1172197 has 8 divisors (see below), whose sum is σ = 1297016. Its totient is φ = 1052352.

The previous prime is 1172179. The next prime is 1172207. The reversal of 1172197 is 7912711.

It can be written as a sum of positive squares in 4 ways, for example, as 481636 + 690561 = 694^2 + 831^2 .

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 1172197 - 2⁷ = 1172069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 738 + ... + 1699.

It is an arithmetic number, because the mean of its divisors is an integer number (162127).

2^1172197 is an apocalyptic number.

It is an amenable number.

1172197 is a deficient number, since it is larger than the sum of its proper divisors (124819).

1172197 is a wasteful number, since it uses less digits than its factorization.

1172197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487.

The product of its digits is 882, while the sum is 28.

The square root of 1172197 is about 1082.6804699448. The cubic root of 1172197 is about 105.4387386453.

It can be divided in two parts, 1172 and 197, that added together give a square (1369 = 37²).

The spelling of 1172197 in words is "one million, one hundred seventy-two thousand, one hundred ninety-seven".