747339749 has 8 divisors (see below), whose sum is σ = 847187040. Its totient is φ = 653543856.

The previous prime is 747339739. The next prime is 747339751. The reversal of 747339749 is 947933747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 747339749 - 2⁸ = 747339493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 747339749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747339739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1512587 + ... + 1513080.

It is an arithmetic number, because the mean of its divisors is an integer number (105898380).

Almost surely, 2^747339749 is an apocalyptic number.

It is an amenable number.

747339749 is a deficient number, since it is larger than the sum of its proper divisors (99847291).

747339749 is a wasteful number, since it uses less digits than its factorization.

747339749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025699.

The product of its digits is 4000752, while the sum is 53.

The square root of 747339749 is about 27337.5154138045. The cubic root of 747339749 is about 907.4848022914.

The spelling of 747339749 in words is "seven hundred forty-seven million, three hundred thirty-nine thousand, seven hundred forty-nine".