748780287 has 4 divisors (see below), whose sum is σ = 998373720. Its totient is φ = 499186856.

The previous prime is 748780273. The next prime is 748780289. The reversal of 748780287 is 782087847.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 748780287 - 2⁸ = 748780031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748780289) 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 3 ways as a sum of consecutive naturals, for example, 124796712 + ... + 124796717.

It is an arithmetic number, because the mean of its divisors is an integer number (249593430).

Almost surely, 2^748780287 is an apocalyptic number.

748780287 is a deficient number, since it is larger than the sum of its proper divisors (249593433).

748780287 is a wasteful number, since it uses less digits than its factorization.

748780287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249593432.

The product of its (nonzero) digits is 1404928, while the sum is 51.

The square root of 748780287 is about 27363.8500032433. The cubic root of 748780287 is about 908.0675034880.

The spelling of 748780287 in words is "seven hundred forty-eight million, seven hundred eighty thousand, two hundred eighty-seven".