1233997 has 4 divisors (see below), whose sum is σ = 1236220. Its totient is φ = 1231776.

The previous prime is 1233983. The next prime is 1234001. The reversal of 1233997 is 7993321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 724201 + 509796 = 851^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233997 - 2¹⁵ = 1201229 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 (1233907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (309055).

2^1233997 is an apocalyptic number.

It is an amenable number.

1233997 is a deficient number, since it is larger than the sum of its proper divisors (2223).

1233997 is a wasteful number, since it uses less digits than its factorization.

1233997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its digits is 10206, while the sum is 34.

The square root of 1233997 is about 1110.8541758485. The cubic root of 1233997 is about 107.2600597675.

The spelling of 1233997 in words is "one million, two hundred thirty-three thousand, nine hundred ninety-seven".