1392743 has 4 divisors (see below), whose sum is σ = 1519368. Its totient is φ = 1266120.

The previous prime is 1392733. The next prime is 1392763. The reversal of 1392743 is 3472931.

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 1392743 - 2⁶ = 1392679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392733) 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, 63296 + ... + 63317.

It is an arithmetic number, because the mean of its divisors is an integer number (379842).

2^1392743 is an apocalyptic number.

1392743 is a deficient number, since it is larger than the sum of its proper divisors (126625).

1392743 is a wasteful number, since it uses less digits than its factorization.

1392743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126624.

The product of its digits is 4536, while the sum is 29.

The square root of 1392743 is about 1180.1453300336. The cubic root of 1392743 is about 111.6752657916.

It can be divided in two parts, 139 and 2743, that added together give a palindrome (2882).

The spelling of 1392743 in words is "one million, three hundred ninety-two thousand, seven hundred forty-three".