748256393 has 4 divisors (see below), whose sum is σ = 772393728. Its totient is φ = 724119060.

The previous prime is 748256389. The next prime is 748256407. The reversal of 748256393 is 393652847.

It is a happy number.

748256393 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: 393652847 = 7 ⋅56236121.

It is a cyclic number.

It is not a de Polignac number, because 748256393 - 2² = 748256389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748256363) 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, 12068621 + ... + 12068682.

It is an arithmetic number, because the mean of its divisors is an integer number (193098432).

Almost surely, 2^748256393 is an apocalyptic number.

It is an amenable number.

748256393 is a deficient number, since it is larger than the sum of its proper divisors (24137335).

748256393 is a wasteful number, since it uses less digits than its factorization.

748256393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24137334.

The product of its digits is 1088640, while the sum is 47.

The square root of 748256393 is about 27354.2755890190. The cubic root of 748256393 is about 907.8556736101.

It can be divided in two parts, 74825 and 6393, that added together give a palindrome (81218).

The spelling of 748256393 in words is "seven hundred forty-eight million, two hundred fifty-six thousand, three hundred ninety-three".