748669813 has 2 divisors, whose sum is σ = 748669814. Its totient is φ = 748669812.

The previous prime is 748669811. The next prime is 748669819. The reversal of 748669813 is 318966847.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538332804 + 210337009 = 23202^2 + 14503^2 .

It is a cyclic number.

It is not a de Polignac number, because 748669813 - 2¹ = 748669811 is a prime.

Together with 748669811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748669811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374334906 + 374334907.

It is an arithmetic number, because the mean of its divisors is an integer number (374334907).

Almost surely, 2^748669813 is an apocalyptic number.

It is an amenable number.

748669813 is a deficient number, since it is larger than the sum of its proper divisors (1).

748669813 is an equidigital number, since it uses as much as digits as its factorization.

748669813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 748669813 is about 27361.8313166352. The cubic root of 748669813 is about 908.0228429536.

The spelling of 748669813 in words is "seven hundred forty-eight million, six hundred sixty-nine thousand, eight hundred thirteen".