612743 has 4 divisors (see below), whose sum is σ = 639408. Its totient is φ = 586080.

The previous prime is 612737. The next prime is 612751. The reversal of 612743 is 347216.

612743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 612743 - 2⁴ = 612727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 26641 = 612743 / (6 + 1 + 2 + 7 + 4 + 3).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612713) 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, 13298 + ... + 13343.

It is an arithmetic number, because the mean of its divisors is an integer number (159852).

2⁶¹²⁷⁴³ is an apocalyptic number.

612743 is a deficient number, since it is larger than the sum of its proper divisors (26665).

612743 is a wasteful number, since it uses less digits than its factorization.

612743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26664.

The product of its digits is 1008, while the sum is 23.

The square root of 612743 is about 782.7790237353. The cubic root of 612743 is about 84.9361920202.

Adding to 612743 its reverse (347216), we get a palindrome (959959).

The spelling of 612743 in words is "six hundred twelve thousand, seven hundred forty-three".