748313009 has 4 divisors (see below), whose sum is σ = 748528704. Its totient is φ = 748097316.

The previous prime is 748312993. The next prime is 748313023. The reversal of 748313009 is 900313847.

748313009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 748313009 - 2⁴ = 748312993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 748313009.

It is not an unprimeable number, because it can be changed into a prime (748313029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102557 + ... + 109610.

It is an arithmetic number, because the mean of its divisors is an integer number (187132176).

Almost surely, 2^748313009 is an apocalyptic number.

It is an amenable number.

748313009 is a deficient number, since it is larger than the sum of its proper divisors (215695).

748313009 is a wasteful number, since it uses less digits than its factorization.

748313009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215694.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 748313009 is about 27355.3104350874. The cubic root of 748313009 is about 907.8785703342.

The spelling of 748313009 in words is "seven hundred forty-eight million, three hundred thirteen thousand, nine".