1397273 has 8 divisors (see below), whose sum is σ = 1478400. Its totient is φ = 1317888.

The previous prime is 1397267. The next prime is 1397287. The reversal of 1397273 is 3727931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1397273 - 2⁴ = 1397257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (184800).

2^1397273 is an apocalyptic number.

It is an amenable number.

1397273 is a deficient number, since it is larger than the sum of its proper divisors (81127).

1397273 is an equidigital number, since it uses as much as digits as its factorization.

1397273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its digits is 7938, while the sum is 32.

The square root of 1397273 is about 1182.0630270844. The cubic root of 1397273 is about 111.7962121214.

The spelling of 1397273 in words is "one million, three hundred ninety-seven thousand, two hundred seventy-three".