1303397 has 4 divisors (see below), whose sum is σ = 1306656. Its totient is φ = 1300140.

The previous prime is 1303363. The next prime is 1303409. The reversal of 1303397 is 7933031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7933031 = 2161 ⋅3671.

It is a cyclic number.

It is not a de Polignac number, because 1303397 - 2¹⁰ = 1302373 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303307) 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, 929 + ... + 1862.

It is an arithmetic number, because the mean of its divisors is an integer number (326664).

2^1303397 is an apocalyptic number.

It is an amenable number.

1303397 is a deficient number, since it is larger than the sum of its proper divisors (3259).

1303397 is an equidigital number, since it uses as much as digits as its factorization.

1303397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 1303397 is about 1141.6641362502. The cubic root of 1303397 is about 109.2342687423.

The spelling of 1303397 in words is "one million, three hundred three thousand, three hundred ninety-seven".