749947 has 8 divisors (see below), whose sum is σ = 829440. Its totient is φ = 672360.

The previous prime is 749941. The next prime is 749971.

749947 is nontrivially palindromic in base 10 and base 16.

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 749947 - 2³ = 749939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 1300.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2⁷⁴⁹⁹⁴⁷ is an apocalyptic number.

749947 is a deficient number, since it is larger than the sum of its proper divisors (79493).

749947 is a wasteful number, since it uses less digits than its factorization.

749947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953.

The product of its digits is 63504, while the sum is 40.

The square root of 749947 is about 865.9948036796. The cubic root of 749947 is about 90.8538894269.

The spelling of 749947 in words is "seven hundred forty-nine thousand, nine hundred forty-seven".