1393874 has 4 divisors (see below), whose sum is σ = 2090814. Its totient is φ = 696936.

The previous prime is 1393871. The next prime is 1393883. The reversal of 1393874 is 4783931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4783931 = 23 ⋅207997.

It can be written as a sum of positive squares in only one way, i.e., 1338649 + 55225 = 1157^2 + 235^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1393871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348467 + ... + 348470.

2^1393874 is an apocalyptic number.

1393874 is a deficient number, since it is larger than the sum of its proper divisors (696940).

1393874 is an equidigital number, since it uses as much as digits as its factorization.

1393874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696939.

The product of its digits is 18144, while the sum is 35.

The square root of 1393874 is about 1180.6244110639. The cubic root of 1393874 is about 111.7054868617.

The spelling of 1393874 in words is "one million, three hundred ninety-three thousand, eight hundred seventy-four".