997049 has 4 divisors (see below), whose sum is σ = 1031460. Its totient is φ = 962640.

The previous prime is 997043. The next prime is 997057. The reversal of 997049 is 940799.

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

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 714025 = 532^2 + 845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997043) 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 3 ways as a sum of consecutive naturals, for example, 17162 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (257865).

2⁹⁹⁷⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

997049 is a deficient number, since it is larger than the sum of its proper divisors (34411).

997049 is a wasteful number, since it uses less digits than its factorization.

997049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34410.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 997049 is about 998.5234098408. The cubic root of 997049 is about 99.9015364144.

The spelling of 997049 in words is "nine hundred ninety-seven thousand, forty-nine".