1373397 has 4 divisors (see below), whose sum is σ = 1831200. Its totient is φ = 915596.

The previous prime is 1373381. The next prime is 1373417. The reversal of 1373397 is 7933731.

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.

It is a cyclic number.

It is not a de Polignac number, because 1373397 - 2⁴ = 1373381 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373347) 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, 228897 + ... + 228902.

It is an arithmetic number, because the mean of its divisors is an integer number (457800).

2^1373397 is an apocalyptic number.

It is an amenable number.

1373397 is a deficient number, since it is larger than the sum of its proper divisors (457803).

1373397 is an equidigital number, since it uses as much as digits as its factorization.

1373397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457802.

The product of its digits is 11907, while the sum is 33.

The square root of 1373397 is about 1171.9202191276. The cubic root of 1373397 is about 111.1557751178.

It can be divided in two parts, 1373 and 397, that added together give a triangular number (1770 = T₅₉).

The spelling of 1373397 in words is "one million, three hundred seventy-three thousand, three hundred ninety-seven".