1197671 has 4 divisors (see below), whose sum is σ = 1239000. Its totient is φ = 1156344.

The previous prime is 1197649. The next prime is 1197697. The reversal of 1197671 is 1767911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1197671 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197601) 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, 20621 + ... + 20678.

It is an arithmetic number, because the mean of its divisors is an integer number (309750).

2^1197671 is an apocalyptic number.

1197671 is a deficient number, since it is larger than the sum of its proper divisors (41329).

1197671 is an equidigital number, since it uses as much as digits as its factorization.

1197671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41328.

The product of its digits is 2646, while the sum is 32.

The square root of 1197671 is about 1094.3815605172. The cubic root of 1197671 is about 106.1970642883.

The spelling of 1197671 in words is "one million, one hundred ninety-seven thousand, six hundred seventy-one".