1197647 has 4 divisors (see below), whose sum is σ = 1306536. Its totient is φ = 1088760.

The previous prime is 1197631. The next prime is 1197649. The reversal of 1197647 is 7467911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7467911 = 11 ⋅678901.

It is a cyclic number.

It is not a de Polignac number, because 1197647 - 2⁴ = 1197631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197649) 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, 54428 + ... + 54449.

It is an arithmetic number, because the mean of its divisors is an integer number (326634).

2^1197647 is an apocalyptic number.

1197647 is a deficient number, since it is larger than the sum of its proper divisors (108889).

1197647 is a wasteful number, since it uses less digits than its factorization.

1197647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108888.

The product of its digits is 10584, while the sum is 35.

The square root of 1197647 is about 1094.3705953652. The cubic root of 1197647 is about 106.1963549264.

The spelling of 1197647 in words is "one million, one hundred ninety-seven thousand, six hundred forty-seven".