612918 has 24 divisors (see below), whose sum is σ = 1406808. Its totient is φ = 192192.

The previous prime is 612889. The next prime is 612923. The reversal of 612918 is 819216.

612918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

612918 is a modest number, since divided by 918 gives 612 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 612891 and 612900.

It is a congruent number.

It is an unprimeable number.

612918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 696 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (58617).

2⁶¹²⁹¹⁸ is an apocalyptic number.

612918 is an abundant number, since it is smaller than the sum of its proper divisors (793890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612918 is a wasteful number, since it uses less digits than its factorization.

612918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2025 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 612918 is about 782.8907969826. The cubic root of 612918 is about 84.9442772037.

The spelling of 612918 in words is "six hundred twelve thousand, nine hundred eighteen".