748456789 has 2 divisors, whose sum is σ = 748456790. Its totient is φ = 748456788.

The previous prime is 748456769. The next prime is 748456801. The reversal of 748456789 is 987654847.

748456789 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., 487084900 + 261371889 = 22070^2 + 16167^2 .

It is a cyclic number.

It is not a de Polignac number, because 748456789 - 2⁷ = 748456661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748456769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374228394 + 374228395.

It is an arithmetic number, because the mean of its divisors is an integer number (374228395).

Almost surely, 2^748456789 is an apocalyptic number.

It is an amenable number.

748456789 is a deficient number, since it is larger than the sum of its proper divisors (1).

748456789 is an equidigital number, since it uses as much as digits as its factorization.

748456789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 58.

The square root of 748456789 is about 27357.9383177900. The cubic root of 748456789 is about 907.9367128583.

The spelling of 748456789 in words is "seven hundred forty-eight million, four hundred fifty-six thousand, seven hundred eighty-nine".