1343997 has 6 divisors (see below), whose sum is σ = 1941342. Its totient is φ = 895992.

The previous prime is 1343987. The next prime is 1344011. The reversal of 1343997 is 7993431.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 285156 = 1029^2 + 534^2 .

It is not a de Polignac number, because 1343997 - 2¹⁰ = 1342973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343917) 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 5 ways as a sum of consecutive naturals, for example, 74658 + ... + 74675.

It is an arithmetic number, because the mean of its divisors is an integer number (323557).

2^1343997 is an apocalyptic number.

It is an amenable number.

1343997 is a deficient number, since it is larger than the sum of its proper divisors (597345).

1343997 is a wasteful number, since it uses less digits than its factorization.

1343997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149339 (or 149336 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 1343997 is about 1159.3088458215. The cubic root of 1343997 is about 110.3568849443.

The spelling of 1343997 in words is "one million, three hundred forty-three thousand, nine hundred ninety-seven".