748173557 has 2 divisors, whose sum is σ = 748173558. Its totient is φ = 748173556.

The previous prime is 748173511. The next prime is 748173593. The reversal of 748173557 is 755371847.

748173557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502028836 + 246144721 = 22406^2 + 15689^2 .

It is a cyclic number.

It is not a de Polignac number, because 748173557 - 2⁸ = 748173301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748173157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374086778 + 374086779.

It is an arithmetic number, because the mean of its divisors is an integer number (374086779).

Almost surely, 2^748173557 is an apocalyptic number.

It is an amenable number.

748173557 is a deficient number, since it is larger than the sum of its proper divisors (1).

748173557 is an equidigital number, since it uses as much as digits as its factorization.

748173557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823200, while the sum is 47.

The square root of 748173557 is about 27352.7614145263. The cubic root of 748173557 is about 907.8221708747.

The spelling of 748173557 in words is "seven hundred forty-eight million, one hundred seventy-three thousand, five hundred fifty-seven".