748475729 has 4 divisors (see below), whose sum is σ = 781018176. Its totient is φ = 715933284.

The previous prime is 748475719. The next prime is 748475731. The reversal of 748475729 is 927574847.

748475729 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, and also an emirpimes, since its reverse is a distinct semiprime: 927574847 = 16141 ⋅57467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748475729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (748475719) 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, 16271189 + ... + 16271234.

It is an arithmetic number, because the mean of its divisors is an integer number (195254544).

Almost surely, 2^748475729 is an apocalyptic number.

It is an amenable number.

748475729 is a deficient number, since it is larger than the sum of its proper divisors (32542447).

748475729 is a wasteful number, since it uses less digits than its factorization.

748475729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32542446.

The product of its digits is 3951360, while the sum is 53.

The square root of 748475729 is about 27358.2844674150. The cubic root of 748475729 is about 907.9443713615.

The spelling of 748475729 in words is "seven hundred forty-eight million, four hundred seventy-five thousand, seven hundred twenty-nine".