789749 has 2 divisors, whose sum is σ = 789750. Its totient is φ = 789748.

The previous prime is 789739. The next prime is 789793. The reversal of 789749 is 947987.

789749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (789793) can be obtained adding 789749 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 165649 = 790^2 + 407^2 .

It is an emirp because it is prime and its reverse (947987) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 789749 - 2⁸ = 789493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (789709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394874 + 394875.

It is an arithmetic number, because the mean of its divisors is an integer number (394875).

2⁷⁸⁹⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

789749 is a deficient number, since it is larger than the sum of its proper divisors (1).

789749 is an equidigital number, since it uses as much as digits as its factorization.

789749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The square root of 789749 is about 888.6782319828. The cubic root of 789749 is about 92.4335632024.

The spelling of 789749 in words is "seven hundred eighty-nine thousand, seven hundred forty-nine".