747666851 has 8 divisors (see below), whose sum is σ = 792470304. Its totient is φ = 702954880.

The previous prime is 747666847. The next prime is 747666863. The reversal of 747666851 is 158666747.

747666851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 747666851 - 2² = 747666847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 747666851.

It is not an unprimeable number, because it can be changed into a prime (747666841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5660 + ... + 39081.

It is an arithmetic number, because the mean of its divisors is an integer number (99058788).

Almost surely, 2^747666851 is an apocalyptic number.

747666851 is a deficient number, since it is larger than the sum of its proper divisors (44803453).

747666851 is a wasteful number, since it uses less digits than its factorization.

747666851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45741.

The product of its digits is 1693440, while the sum is 50.

The square root of 747666851 is about 27343.4974171191. The cubic root of 747666851 is about 907.6171815280.

The spelling of 747666851 in words is "seven hundred forty-seven million, six hundred sixty-six thousand, eight hundred fifty-one".