1339723 has 16 divisors (see below), whose sum is σ = 1695744. Its totient is φ = 1028160.

The previous prime is 1339711. The next prime is 1339729. The reversal of 1339723 is 3279331.

It is not a de Polignac number, because 1339723 - 2⁵ = 1339691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1339691 and 1339700.

It is not an unprimeable number, because it can be changed into a prime (1339729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9711 + ... + 9847.

It is an arithmetic number, because the mean of its divisors is an integer number (105984).

2^1339723 is an apocalyptic number.

1339723 is a deficient number, since it is larger than the sum of its proper divisors (356021).

1339723 is a wasteful number, since it uses less digits than its factorization.

1339723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

The product of its digits is 3402, while the sum is 28.

The square root of 1339723 is about 1157.4640383183. The cubic root of 1339723 is about 110.2397799738.

The spelling of 1339723 in words is "one million, three hundred thirty-nine thousand, seven hundred twenty-three".