749909947 has 8 divisors (see below), whose sum is σ = 761238000. Its totient is φ = 738610560.

The previous prime is 749909903. The next prime is 749909977.

749909947 is nontrivially palindromic in base 10.

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 749909947 - 2¹⁵ = 749877179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749909891 and 749909900.

It is not an unprimeable number, because it can be changed into a prime (749909977) 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, 48804 + ... + 62302.

It is an arithmetic number, because the mean of its divisors is an integer number (95154750).

Almost surely, 2^749909947 is an apocalyptic number.

749909947 is a deficient number, since it is larger than the sum of its proper divisors (11328053).

749909947 is a wasteful number, since it uses less digits than its factorization.

749909947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14333.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The square root of 749909947 is about 27384.4836905865. The cubic root of 749909947 is about 908.5239311471.

The spelling of 749909947 in words is "seven hundred forty-nine million, nine hundred nine thousand, nine hundred forty-seven".