612746823 has 8 divisors (see below), whose sum is σ = 879841648. Its totient is φ = 377074944.

The previous prime is 612746819. The next prime is 612746839. The reversal of 612746823 is 328647216.

It is a happy number.

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

It is not a de Polignac number, because 612746823 - 2² = 612746819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 15711457 = 612746823 / (6 + 1 + 2 + 7 + 4 + 6 + 8 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612746803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7855690 + ... + 7855767.

It is an arithmetic number, because the mean of its divisors is an integer number (109980206).

Almost surely, 2^612746823 is an apocalyptic number.

612746823 is a deficient number, since it is larger than the sum of its proper divisors (267094825).

612746823 is a wasteful number, since it uses less digits than its factorization.

612746823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15711473.

The product of its digits is 96768, while the sum is 39.

The square root of 612746823 is about 24753.7234168923. The cubic root of 612746823 is about 849.3636866326.

The spelling of 612746823 in words is "six hundred twelve million, seven hundred forty-six thousand, eight hundred twenty-three".