749975947 has 8 divisors (see below), whose sum is σ = 865126656. Its totient is φ = 636828072.

The previous prime is 749975921. The next prime is 749975951. The reversal of 749975947 is 749579947.

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 749975947 - 2⁷ = 749975819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749975987) 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, 499903 + ... + 501400.

It is an arithmetic number, because the mean of its divisors is an integer number (108140832).

Almost surely, 2^749975947 is an apocalyptic number.

749975947 is a deficient number, since it is larger than the sum of its proper divisors (115150709).

749975947 is a wasteful number, since it uses less digits than its factorization.

749975947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001417.

The product of its digits is 20003760, while the sum is 61.

The square root of 749975947 is about 27385.6887260481. The cubic root of 749975947 is about 908.5505836008.

The spelling of 749975947 in words is "seven hundred forty-nine million, nine hundred seventy-five thousand, nine hundred forty-seven".