789490749 has 8 divisors (see below), whose sum is σ = 1053156832. Its totient is φ = 526075920.

The previous prime is 789490747. The next prime is 789490759. The reversal of 789490749 is 947094987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 789490749 - 2¹ = 789490747 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789490747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55354 + ... + 68139.

It is an arithmetic number, because the mean of its divisors is an integer number (131644604).

Almost surely, 2^789490749 is an apocalyptic number.

It is an amenable number.

789490749 is a deficient number, since it is larger than the sum of its proper divisors (263666083).

789490749 is a wasteful number, since it uses less digits than its factorization.

789490749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125627.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 789490749 is about 28097.8780159641. The cubic root of 789490749 is about 924.2348672549.

The spelling of 789490749 in words is "seven hundred eighty-nine million, four hundred ninety thousand, seven hundred forty-nine".