1380723 has 8 divisors (see below), whose sum is σ = 1949328. Its totient is φ = 866304.

The previous prime is 1380721. The next prime is 1380727. The reversal of 1380723 is 3270831.

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

It is not a de Polignac number, because 1380723 - 2¹ = 1380721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380693 and 1380702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380721) 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, 13486 + ... + 13587.

It is an arithmetic number, because the mean of its divisors is an integer number (243666).

2^1380723 is an apocalyptic number.

1380723 is a deficient number, since it is larger than the sum of its proper divisors (568605).

1380723 is a wasteful number, since it uses less digits than its factorization.

1380723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27093.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1380723 is about 1175.0417013877. The cubic root of 1380723 is about 111.3530678043.

It can be divided in two parts, 138072 and 3, that added together give a triangular number (138075 = T₅₂₅).

The spelling of 1380723 in words is "one million, three hundred eighty thousand, seven hundred twenty-three".