1397037 has 4 divisors (see below), whose sum is σ = 1862720. Its totient is φ = 931356.

The previous prime is 1397029. The next prime is 1397041. The reversal of 1397037 is 7307931.

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: 7307931 = 3 ⋅2435977.

It is not a de Polignac number, because 1397037 - 2³ = 1397029 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1396995 and 1397013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397057) 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, 232837 + ... + 232842.

It is an arithmetic number, because the mean of its divisors is an integer number (465680).

2^1397037 is an apocalyptic number.

It is an amenable number.

1397037 is a deficient number, since it is larger than the sum of its proper divisors (465683).

1397037 is an equidigital number, since it uses as much as digits as its factorization.

1397037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465682.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 1397037 is about 1181.9631973966. The cubic root of 1397037 is about 111.7899176245.

The spelling of 1397037 in words is "one million, three hundred ninety-seven thousand, thirty-seven".