789641 has 8 divisors (see below), whose sum is σ = 830280. Its totient is φ = 749952.

The previous prime is 789631. The next prime is 789653. The reversal of 789641 is 146987.

It can be written as a sum of positive squares in 4 ways, for example, as 156025 + 633616 = 395^2 + 796^2 .

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 789641 - 2⁶ = 789577 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1931 + ... + 2303.

It is an arithmetic number, because the mean of its divisors is an integer number (103785).

2⁷⁸⁹⁶⁴¹ is an apocalyptic number.

It is an amenable number.

789641 is a deficient number, since it is larger than the sum of its proper divisors (40639).

789641 is a wasteful number, since it uses less digits than its factorization.

789641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its digits is 12096, while the sum is 35.

The square root of 789641 is about 888.6174655047. The cubic root of 789641 is about 92.4293495092.

The spelling of 789641 in words is "seven hundred eighty-nine thousand, six hundred forty-one".