1383723 has 20 divisors (see below), whose sum is σ = 2256408. Its totient is φ = 838080.

The previous prime is 1383691. The next prime is 1383731. The reversal of 1383723 is 3273831.

1383723 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 1383723 - 2⁵ = 1383691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1383743) 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 19 ways as a sum of consecutive naturals, for example, 115 + ... + 1667.

2^1383723 is an apocalyptic number.

1383723 is a deficient number, since it is larger than the sum of its proper divisors (872685).

1383723 is a wasteful number, since it uses less digits than its factorization.

1383723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576 (or 1567 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 1383723 is about 1176.3175591650. The cubic root of 1383723 is about 111.4336578405.

The spelling of 1383723 in words is "one million, three hundred eighty-three thousand, seven hundred twenty-three".