612718 has 4 divisors (see below), whose sum is σ = 919080. Its totient is φ = 306358.

The previous prime is 612713. The next prime is 612719. The reversal of 612718 is 817216.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 612692 and 612701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612713) by changing a digit.

612718 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 153178 + ... + 153181.

It is an arithmetic number, because the mean of its divisors is an integer number (229770).

2⁶¹²⁷¹⁸ is an apocalyptic number.

612718 is a deficient number, since it is larger than the sum of its proper divisors (306362).

612718 is a wasteful number, since it uses less digits than its factorization.

612718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306361.

The product of its digits is 672, while the sum is 25.

The square root of 612718 is about 782.7630548257. The cubic root of 612718 is about 84.9350368683.

The spelling of 612718 in words is "six hundred twelve thousand, seven hundred eighteen".