749565947 has 4 divisors (see below), whose sum is σ = 807224880. Its totient is φ = 691907016.

The previous prime is 749565931. The next prime is 749565959.

749565947 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 749565947 - 2⁴ = 749565931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749565892 and 749565901.

It is not an unprimeable number, because it can be changed into a prime (749565907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28829447 + ... + 28829472.

It is an arithmetic number, because the mean of its divisors is an integer number (201806220).

Almost surely, 2^749565947 is an apocalyptic number.

749565947 is a deficient number, since it is larger than the sum of its proper divisors (57658933).

749565947 is a wasteful number, since it uses less digits than its factorization.

749565947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57658932.

The product of its digits is 9525600, while the sum is 56.

The square root of 749565947 is about 27378.2020410399. The cubic root of 749565947 is about 908.3849900052.

The spelling of 749565947 in words is "seven hundred forty-nine million, five hundred sixty-five thousand, nine hundred forty-seven".