1197943 has 4 divisors (see below), whose sum is σ = 1202040. Its totient is φ = 1193848.

The previous prime is 1197941. The next prime is 1197947. The reversal of 1197943 is 3497911.

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

It is a cyclic number.

It is not a de Polignac number, because 1197943 - 2¹ = 1197941 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1197899 and 1197908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197941) 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, 1573 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (300510).

2^1197943 is an apocalyptic number.

1197943 is a deficient number, since it is larger than the sum of its proper divisors (4097).

1197943 is an equidigital number, since it uses as much as digits as its factorization.

1197943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096.

The product of its digits is 6804, while the sum is 34.

The square root of 1197943 is about 1094.5058245619. The cubic root of 1197943 is about 106.2051030610.

Subtracting 1197943 from its reverse (3497911), we obtain a cube (2299968 = 132³).

The spelling of 1197943 in words is "one million, one hundred ninety-seven thousand, nine hundred forty-three".