755748749 has 8 divisors (see below), whose sum is σ = 864378240. Its totient is φ = 647285616.

The previous prime is 755748739. The next prime is 755748757. The reversal of 755748749 is 947847557.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-755748749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 755748694 and 755748703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755748709) 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 7 ways as a sum of consecutive naturals, for example, 31694 + ... + 50159.

It is an arithmetic number, because the mean of its divisors is an integer number (108047280).

Almost surely, 2^755748749 is an apocalyptic number.

It is an amenable number.

755748749 is a deficient number, since it is larger than the sum of its proper divisors (108629491).

755748749 is a wasteful number, since it uses less digits than its factorization.

755748749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83179.

The product of its digits is 9878400, while the sum is 56.

The square root of 755748749 is about 27490.8848347957. The cubic root of 755748749 is about 910.8757615956.

The spelling of 755748749 in words is "seven hundred fifty-five million, seven hundred forty-eight thousand, seven hundred forty-nine".