1197847 has 8 divisors (see below), whose sum is σ = 1377152. Its totient is φ = 1020600.

The previous prime is 1197829. The next prime is 1197881. The reversal of 1197847 is 7487911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1197847 - 2¹⁵ = 1165079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 1882.

It is an arithmetic number, because the mean of its divisors is an integer number (172144).

2^1197847 is an apocalyptic number.

1197847 is a deficient number, since it is larger than the sum of its proper divisors (179305).

1197847 is an equidigital number, since it uses as much as digits as its factorization.

1197847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029.

The product of its digits is 14112, while the sum is 37.

The square root of 1197847 is about 1094.4619682748. The cubic root of 1197847 is about 106.2022659861.

Subtracting 1197847 from its reverse (7487911), we obtain a square (6290064 = 2508²).

The spelling of 1197847 in words is "one million, one hundred ninety-seven thousand, eight hundred forty-seven".