749543613 has 16 divisors (see below), whose sum is σ = 1230020736. Its totient is φ = 395363520.

The previous prime is 749543581. The next prime is 749543659. The reversal of 749543613 is 316345947.

749543613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 749543613 - 2⁵ = 749543581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749543693) 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, 1372518 + ... + 1373063.

It is an arithmetic number, because the mean of its divisors is an integer number (76876296).

Almost surely, 2^749543613 is an apocalyptic number.

It is an amenable number.

749543613 is a deficient number, since it is larger than the sum of its proper divisors (480477123).

749543613 is a wasteful number, since it uses less digits than its factorization.

749543613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745604.

The product of its digits is 272160, while the sum is 42.

The square root of 749543613 is about 27377.7941587704. The cubic root of 749543613 is about 908.3759678629.

The spelling of 749543613 in words is "seven hundred forty-nine million, five hundred forty-three thousand, six hundred thirteen".