748000009 has 4 divisors (see below), whose sum is σ = 752178960. Its totient is φ = 743821060.

The previous prime is 747999977. The next prime is 748000013. The reversal of 748000009 is 900000847.

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 748000009 - 2⁵ = 747999977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748000039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089207 + ... + 2089564.

It is an arithmetic number, because the mean of its divisors is an integer number (188044740).

Almost surely, 2^748000009 is an apocalyptic number.

It is an amenable number.

748000009 is a deficient number, since it is larger than the sum of its proper divisors (4178951).

748000009 is a wasteful number, since it uses less digits than its factorization.

748000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178950.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 748000009 is about 27349.5888268910. The cubic root of 748000009 is about 907.7519719642.

The spelling of 748000009 in words is "seven hundred forty-eight million, nine", and thus it is an aban number.