749640959 has 8 divisors (see below), whose sum is σ = 794556288. Its totient is φ = 704816640.

The previous prime is 749640937. The next prime is 749640989. The reversal of 749640959 is 959046947.

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 749640959 - 2¹⁶ = 749575423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 749640959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749640989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 39095.

It is an arithmetic number, because the mean of its divisors is an integer number (99319536).

Almost surely, 2^749640959 is an apocalyptic number.

749640959 is a deficient number, since it is larger than the sum of its proper divisors (44915329).

749640959 is a wasteful number, since it uses less digits than its factorization.

749640959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45505.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 749640959 is about 27379.5719287209. The cubic root of 749640959 is about 908.4152908757.

The spelling of 749640959 in words is "seven hundred forty-nine million, six hundred forty thousand, nine hundred fifty-nine".