1197939 has 16 divisors (see below), whose sum is σ = 1717632. Its totient is φ = 739968.

The previous prime is 1197929. The next prime is 1197941. The reversal of 1197939 is 9397911.

It is not a de Polignac number, because 1197939 - 2⁴ = 1197923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1197897 and 1197906.

It is not an unprimeable number, because it can be changed into a prime (1197929) 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 15 ways as a sum of consecutive naturals, for example, 4092 + ... + 4374.

It is an arithmetic number, because the mean of its divisors is an integer number (107352).

2^1197939 is an apocalyptic number.

1197939 is a deficient number, since it is larger than the sum of its proper divisors (519693).

1197939 is a wasteful number, since it uses less digits than its factorization.

1197939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its digits is 15309, while the sum is 39.

The square root of 1197939 is about 1094.5039972517. The cubic root of 1197939 is about 106.2049848526.

The spelling of 1197939 in words is "one million, one hundred ninety-seven thousand, nine hundred thirty-nine".