748321393 has 2 divisors, whose sum is σ = 748321394. Its totient is φ = 748321392.

The previous prime is 748321319. The next prime is 748321397. The reversal of 748321393 is 393123847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543029809 + 205291584 = 23303^2 + 14328^2 .

It is a cyclic number.

It is not a de Polignac number, because 748321393 - 2²⁵ = 714766961 is a prime.

It is not a weakly prime, because it can be changed into another prime (748321397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374160696 + 374160697.

It is an arithmetic number, because the mean of its divisors is an integer number (374160697).

Almost surely, 2^748321393 is an apocalyptic number.

It is an amenable number.

748321393 is a deficient number, since it is larger than the sum of its proper divisors (1).

748321393 is an equidigital number, since it uses as much as digits as its factorization.

748321393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 748321393 is about 27355.4636772985. The cubic root of 748321393 is about 907.8819609053.

The spelling of 748321393 in words is "seven hundred forty-eight million, three hundred twenty-one thousand, three hundred ninety-three".