749566089 has 8 divisors (see below), whose sum is σ = 1110468320. Its totient is φ = 499710708.

The previous prime is 749566087. The next prime is 749566127. The reversal of 749566089 is 980665947.

749566089 is a `hidden beast` number, since 74 + 9 + 566 + 0 + 8 + 9 = 666.

749566089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 749566089 - 2¹ = 749566087 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (749566087) 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, 13880827 + ... + 13880880.

It is an arithmetic number, because the mean of its divisors is an integer number (138808540).

Almost surely, 2^749566089 is an apocalyptic number.

It is an amenable number.

749566089 is a deficient number, since it is larger than the sum of its proper divisors (360902231).

749566089 is a wasteful number, since it uses less digits than its factorization.

749566089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27761716 (or 27761710 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 749566089 is about 27378.2046343437. The cubic root of 749566089 is about 908.3850473676.

The spelling of 749566089 in words is "seven hundred forty-nine million, five hundred sixty-six thousand, eighty-nine".