747127445 has 8 divisors (see below), whose sum is σ = 903097944. Its totient is φ = 593338624.

The previous prime is 747127427. The next prime is 747127471. The reversal of 747127445 is 544721747.

It can be written as a sum of positive squares in 4 ways, for example, as 77404804 + 669722641 = 8798^2 + 25879^2 .

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 747127445 - 2²⁰ = 746078869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 544664 + ... + 546033.

It is an arithmetic number, because the mean of its divisors is an integer number (112887243).

Almost surely, 2^747127445 is an apocalyptic number.

It is an amenable number.

747127445 is a deficient number, since it is larger than the sum of its proper divisors (155970499).

747127445 is a wasteful number, since it uses less digits than its factorization.

747127445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090839.

The product of its digits is 219520, while the sum is 41.

The square root of 747127445 is about 27333.6321223507. The cubic root of 747127445 is about 907.3988615036.

The spelling of 747127445 in words is "seven hundred forty-seven million, one hundred twenty-seven thousand, four hundred forty-five".