748056509 has 8 divisors (see below), whose sum is σ = 765866112. Its totient is φ = 730265760.

The previous prime is 748056493. The next prime is 748056539. The reversal of 748056509 is 905650847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 748056509 - 2⁴ = 748056493 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 748056509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748056539) 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 in 7 ways as a sum of consecutive naturals, for example, 105929 + ... + 112769.

It is an arithmetic number, because the mean of its divisors is an integer number (95733264).

Almost surely, 2^748056509 is an apocalyptic number.

It is an amenable number.

748056509 is a deficient number, since it is larger than the sum of its proper divisors (17809603).

748056509 is a wasteful number, since it uses less digits than its factorization.

748056509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 748056509 is about 27350.6217296792. The cubic root of 748056509 is about 907.7748269974.

The spelling of 748056509 in words is "seven hundred forty-eight million, fifty-six thousand, five hundred nine".