748883561 has 2 divisors, whose sum is σ = 748883562. Its totient is φ = 748883560.

The previous prime is 748883543. The next prime is 748883591. The reversal of 748883561 is 165388847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618467161 + 130416400 = 24869^2 + 11420^2 .

It is a cyclic number.

It is not a de Polignac number, because 748883561 - 2⁶ = 748883497 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (748883591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374441780 + 374441781.

It is an arithmetic number, because the mean of its divisors is an integer number (374441781).

Almost surely, 2^748883561 is an apocalyptic number.

It is an amenable number.

748883561 is a deficient number, since it is larger than the sum of its proper divisors (1).

748883561 is an equidigital number, since it uses as much as digits as its factorization.

748883561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 50.

The square root of 748883561 is about 27365.7369898930. The cubic root of 748883561 is about 908.1092493574.

The spelling of 748883561 in words is "seven hundred forty-eight million, eight hundred eighty-three thousand, five hundred sixty-one".