748783251 has 16 divisors (see below), whose sum is σ = 1123353600. Its totient is φ = 492868584.

The previous prime is 748783213. The next prime is 748783261. The reversal of 748783251 is 152387847.

It is not a de Polignac number, because 748783251 - 2¹³ = 748775059 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 748783197 and 748783206.

It is not an unprimeable number, because it can be changed into a prime (748783201) 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 15 ways as a sum of consecutive naturals, for example, 173391 + ... + 177656.

It is an arithmetic number, because the mean of its divisors is an integer number (70209600).

Almost surely, 2^748783251 is an apocalyptic number.

748783251 is a deficient number, since it is larger than the sum of its proper divisors (374570349).

748783251 is a wasteful number, since it uses less digits than its factorization.

748783251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351135 (or 351129 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 748783251 is about 27363.9041622353. The cubic root of 748783251 is about 908.0687016626.

The spelling of 748783251 in words is "seven hundred forty-eight million, seven hundred eighty-three thousand, two hundred fifty-one".