749861903 has 16 divisors (see below), whose sum is σ = 894696000. Its totient is φ = 614863872.

The previous prime is 749861887. The next prime is 749861921. The reversal of 749861903 is 309168947.

It is not a de Polignac number, because 749861903 - 2⁴ = 749861887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749861933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5183 + ... + 39071.

It is an arithmetic number, because the mean of its divisors is an integer number (55918500).

Almost surely, 2^749861903 is an apocalyptic number.

749861903 is a deficient number, since it is larger than the sum of its proper divisors (144834097).

749861903 is a wasteful number, since it uses less digits than its factorization.

749861903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 749861903 is about 27383.6064644524. The cubic root of 749861903 is about 908.5045287926.

The spelling of 749861903 in words is "seven hundred forty-nine million, eight hundred sixty-one thousand, nine hundred three".