748687505 has 8 divisors (see below), whose sum is σ = 898770600. Its totient is φ = 598719616.

The previous prime is 748687501. The next prime is 748687507. The reversal of 748687505 is 505786847.

It can be written as a sum of positive squares in 4 ways, for example, as 106419856 + 642267649 = 10316^2 + 25343^2 .

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 748687505 - 2² = 748687501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (748687501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13790 + ... + 41079.

It is an arithmetic number, because the mean of its divisors is an integer number (112346325).

Almost surely, 2^748687505 is an apocalyptic number.

It is an amenable number.

748687505 is a deficient number, since it is larger than the sum of its proper divisors (150083095).

748687505 is a wasteful number, since it uses less digits than its factorization.

748687505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57603.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The square root of 748687505 is about 27362.1546117991. The cubic root of 748687505 is about 908.0299954674.

The spelling of 748687505 in words is "seven hundred forty-eight million, six hundred eighty-seven thousand, five hundred five".