749343947 has 16 divisors (see below), whose sum is σ = 839169504. Its totient is φ = 663360000.

The previous prime is 749343919. The next prime is 749343953.

It is a happy number.

749343947 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 749343947 - 2⁶ = 749343883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 749343895 and 749343904.

It is not an unprimeable number, because it can be changed into a prime (749343967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62243 + ... + 73299.

It is an arithmetic number, because the mean of its divisors is an integer number (52448094).

Almost surely, 2^749343947 is an apocalyptic number.

749343947 is a deficient number, since it is larger than the sum of its proper divisors (89825557).

749343947 is a wasteful number, since it uses less digits than its factorization.

749343947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11230.

The product of its digits is 2286144, while the sum is 50.

The square root of 749343947 is about 27374.1474205134. The cubic root of 749343947 is about 908.2953019306.

The spelling of 749343947 in words is "seven hundred forty-nine million, three hundred forty-three thousand, nine hundred forty-seven".