1385723 has 4 divisors (see below), whose sum is σ = 1389000. Its totient is φ = 1382448.

The previous prime is 1385693. The next prime is 1385743. The reversal of 1385723 is 3275831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1385723 - 2¹⁰ = 1384699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385743) 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, 890 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (347250).

2^1385723 is an apocalyptic number.

1385723 is a deficient number, since it is larger than the sum of its proper divisors (3277).

1385723 is an equidigital number, since it uses as much as digits as its factorization.

1385723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276.

The product of its digits is 5040, while the sum is 29.

The square root of 1385723 is about 1177.1673627824. The cubic root of 1385723 is about 111.4873198394.

The spelling of 1385723 in words is "one million, three hundred eighty-five thousand, seven hundred twenty-three".