612943 has 8 divisors (see below), whose sum is σ = 635040. Its totient is φ = 591360.

The previous prime is 612929. The next prime is 612947. The reversal of 612943 is 349216.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612943 is a prime.

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 (612947) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6271 + ... + 6367.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁶¹²⁹⁴³ is an apocalyptic number.

612943 is a deficient number, since it is larger than the sum of its proper divisors (22097).

612943 is an equidigital number, since it uses as much as digits as its factorization.

612943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its digits is 1296, while the sum is 25.

The square root of 612943 is about 782.9067632867. The cubic root of 612943 is about 84.9454321043.

The spelling of 612943 in words is "six hundred twelve thousand, nine hundred forty-three".