612723 has 8 divisors (see below), whose sum is σ = 822528. Its totient is φ = 405704.

The previous prime is 612719. The next prime is 612727. The reversal of 612723 is 327216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (612719) and next prime (612727).

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

It is a cyclic number.

It is not a de Polignac number, because 612723 - 2² = 612719 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 612723.

It is not an unprimeable number, because it can be changed into a prime (612727) 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, 111 + ... + 1112.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2⁶¹²⁷²³ is an apocalyptic number.

612723 is a deficient number, since it is larger than the sum of its proper divisors (209805).

612723 is a wasteful number, since it uses less digits than its factorization.

612723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its digits is 504, while the sum is 21.

The square root of 612723 is about 782.7662486337. The cubic root of 612723 is about 84.9352679012.

Adding to 612723 its reverse (327216), we get a palindrome (939939).

The spelling of 612723 in words is "six hundred twelve thousand, seven hundred twenty-three".