1397673 has 12 divisors (see below), whose sum is σ = 2040948. Its totient is φ = 921600.

The previous prime is 1397657. The next prime is 1397681. The reversal of 1397673 is 3767931.

It can be written as a sum of positive squares in 2 ways, for example, as 1140624 + 257049 = 1068^2 + 507^2 .

It is not a de Polignac number, because 1397673 - 2⁴ = 1397657 is a prime.

Its product of digits (23814) is a multiple of the sum of its prime divisors (1701).

It is not an unprimeable number, because it can be changed into a prime (1397603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (170079).

2^1397673 is an apocalyptic number.

It is an amenable number.

1397673 is a deficient number, since it is larger than the sum of its proper divisors (643275).

1397673 is a wasteful number, since it uses less digits than its factorization.

1397673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704 (or 1701 counting only the distinct ones).

The product of its digits is 23814, while the sum is 36.

The square root of 1397673 is about 1182.2322106930. The cubic root of 1397673 is about 111.8068791417.

The spelling of 1397673 in words is "one million, three hundred ninety-seven thousand, six hundred seventy-three".