1203997 has 4 divisors (see below), whose sum is σ = 1206460. Its totient is φ = 1201536.

The previous prime is 1203971. The next prime is 1204003. The reversal of 1203997 is 7993021.

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 820836 + 383161 = 906^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203997 - 2¹⁹ = 679709 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243997) 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, 222 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (301615).

2^1203997 is an apocalyptic number.

It is an amenable number.

1203997 is a deficient number, since it is larger than the sum of its proper divisors (2463).

1203997 is an equidigital number, since it uses as much as digits as its factorization.

1203997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1203997 is about 1097.2679709169. The cubic root of 1203997 is about 106.3837107839.

The spelling of 1203997 in words is "one million, two hundred three thousand, nine hundred ninety-seven".