749956389 has 16 divisors (see below), whose sum is σ = 1230698112. Its totient is φ = 395581248.

The previous prime is 749956357. The next prime is 749956397. The reversal of 749956389 is 983659947.

It is not a de Polignac number, because 749956389 - 2⁵ = 749956357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749956399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373274 + ... + 1373819.

It is an arithmetic number, because the mean of its divisors is an integer number (76918632).

Almost surely, 2^749956389 is an apocalyptic number.

It is an amenable number.

749956389 is a deficient number, since it is larger than the sum of its proper divisors (480741723).

749956389 is a wasteful number, since it uses less digits than its factorization.

749956389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747116.

The product of its digits is 14696640, while the sum is 60.

The square root of 749956389 is about 27385.3316394014. The cubic root of 749956389 is about 908.5426857534.

The spelling of 749956389 in words is "seven hundred forty-nine million, nine hundred fifty-six thousand, three hundred eighty-nine".