1199997 has 12 divisors (see below), whose sum is σ = 1746784. Its totient is φ = 793800.

The previous prime is 1199993. The next prime is 1199999. The reversal of 1199997 is 7999911.

It is not a de Polignac number, because 1199997 - 2² = 1199993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1199993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918 + ... + 1800.

2^1199997 is an apocalyptic number.

It is an amenable number.

1199997 is a deficient number, since it is larger than the sum of its proper divisors (546787).

1199997 is a wasteful number, since it uses less digits than its factorization.

1199997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1037 counting only the distinct ones).

The product of its digits is 45927, while the sum is 45.

The square root of 1199997 is about 1095.4437457031. The cubic root of 1199997 is about 106.2657683633.

The spelling of 1199997 in words is "one million, one hundred ninety-nine thousand, nine hundred ninety-seven".