1208997 has 6 divisors (see below), whose sum is σ = 1746342. Its totient is φ = 805992.

The previous prime is 1208957. The next prime is 1209007. The reversal of 1208997 is 7998021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 125316 = 1041^2 + 354^2 .

It is not a de Polignac number, because 1208997 - 2⁸ = 1208741 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67158 + ... + 67175.

It is an arithmetic number, because the mean of its divisors is an integer number (291057).

2^1208997 is an apocalyptic number.

It is an amenable number.

1208997 is a deficient number, since it is larger than the sum of its proper divisors (537345).

1208997 is a wasteful number, since it uses less digits than its factorization.

1208997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134339 (or 134336 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1208997 is about 1099.5439963912. The cubic root of 1208997 is about 106.5307720376.

The spelling of 1208997 in words is "one million, two hundred eight thousand, nine hundred ninety-seven".