749334749 has 4 divisors (see below), whose sum is σ = 788773440. Its totient is φ = 709896060.

The previous prime is 749334713. The next prime is 749334763. The reversal of 749334749 is 947433947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 947433947 = 151 ⋅6274397.

It is a cyclic number.

It is not a de Polignac number, because 749334749 - 2⁸ = 749334493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749334697 and 749334706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749334709) 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 3 ways as a sum of consecutive naturals, for example, 19719317 + ... + 19719354.

It is an arithmetic number, because the mean of its divisors is an integer number (197193360).

Almost surely, 2^749334749 is an apocalyptic number.

It is an amenable number.

749334749 is a deficient number, since it is larger than the sum of its proper divisors (39438691).

749334749 is a wasteful number, since it uses less digits than its factorization.

749334749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39438690.

The product of its digits is 2286144, while the sum is 50.

The square root of 749334749 is about 27373.9794147654. The cubic root of 749334749 is about 908.2915855533.

The spelling of 749334749 in words is "seven hundred forty-nine million, three hundred thirty-four thousand, seven hundred forty-nine".