1393923 has 8 divisors (see below), whose sum is σ = 1867600. Its totient is φ = 924768.

The previous prime is 1393921. The next prime is 1393927. The reversal of 1393923 is 3293931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1393923 - 2¹ = 1393921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328 + ... + 1701.

It is an arithmetic number, because the mean of its divisors is an integer number (233450).

2^1393923 is an apocalyptic number.

1393923 is a deficient number, since it is larger than the sum of its proper divisors (473677).

1393923 is a wasteful number, since it uses less digits than its factorization.

1393923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its digits is 4374, while the sum is 30.

The square root of 1393923 is about 1180.6451626124. The cubic root of 1393923 is about 111.7067958047.

The spelling of 1393923 in words is "one million, three hundred ninety-three thousand, nine hundred twenty-three".