747764161 has 4 divisors (see below), whose sum is σ = 748468672. Its totient is φ = 747059652.

The previous prime is 747764141. The next prime is 747764203. The reversal of 747764161 is 161467747.

747764161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 747764161 - 2¹³ = 747755969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747764111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350661 + ... + 352786.

It is an arithmetic number, because the mean of its divisors is an integer number (187117168).

Almost surely, 2^747764161 is an apocalyptic number.

It is an amenable number.

747764161 is a deficient number, since it is larger than the sum of its proper divisors (704511).

747764161 is a wasteful number, since it uses less digits than its factorization.

747764161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704510.

The product of its digits is 197568, while the sum is 43.

The square root of 747764161 is about 27345.2767585190. The cubic root of 747764161 is about 907.6565557477.

The spelling of 747764161 in words is "seven hundred forty-seven million, seven hundred sixty-four thousand, one hundred sixty-one".