1397043 has 24 divisors (see below), whose sum is σ = 2235168. Its totient is φ = 836352.

The previous prime is 1397041. The next prime is 1397057. The reversal of 1397043 is 3407931.

It is not a de Polignac number, because 1397043 - 2¹ = 1397041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1396998 and 1397016.

It is not an unprimeable number, because it can be changed into a prime (1397041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3321 + ... + 3717.

It is an arithmetic number, because the mean of its divisors is an integer number (93132).

2^1397043 is an apocalyptic number.

1397043 is a deficient number, since it is larger than the sum of its proper divisors (838125).

1397043 is a wasteful number, since it uses less digits than its factorization.

1397043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1397043 is about 1181.9657355440. The cubic root of 1397043 is about 111.7900776629.

The spelling of 1397043 in words is "one million, three hundred ninety-seven thousand, forty-three".