748747861 has 2 divisors, whose sum is σ = 748747862. Its totient is φ = 748747860.

The previous prime is 748747843. The next prime is 748747927. The reversal of 748747861 is 168747847.

748747861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667188900 + 81558961 = 25830^2 + 9031^2 .

It is a cyclic number.

It is not a de Polignac number, because 748747861 - 2⁵ = 748747829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 748747799 and 748747808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748747841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374373930 + 374373931.

It is an arithmetic number, because the mean of its divisors is an integer number (374373931).

Almost surely, 2^748747861 is an apocalyptic number.

It is an amenable number.

748747861 is a deficient number, since it is larger than the sum of its proper divisors (1).

748747861 is an equidigital number, since it uses as much as digits as its factorization.

748747861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2107392, while the sum is 52.

The square root of 748747861 is about 27363.2574997934. The cubic root of 748747861 is about 908.0543953162.

The spelling of 748747861 in words is "seven hundred forty-eight million, seven hundred forty-seven thousand, eight hundred sixty-one".