1377397 has 4 divisors (see below), whose sum is σ = 1574176. Its totient is φ = 1180620.

The previous prime is 1377379. The next prime is 1377403. The reversal of 1377397 is 7937731.

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 not a de Polignac number, because 1377397 - 2⁷ = 1377269 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 (1377317) 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, 98379 + ... + 98392.

It is an arithmetic number, because the mean of its divisors is an integer number (393544).

2^1377397 is an apocalyptic number.

It is an amenable number.

1377397 is a deficient number, since it is larger than the sum of its proper divisors (196779).

1377397 is an equidigital number, since it uses as much as digits as its factorization.

1377397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196778.

The product of its digits is 27783, while the sum is 37.

The square root of 1377397 is about 1173.6255791350. The cubic root of 1377397 is about 111.2635837472.

The spelling of 1377397 in words is "one million, three hundred seventy-seven thousand, three hundred ninety-seven".