689757841 has 8 divisors (see below), whose sum is σ = 692496000. Its totient is φ = 687025920.

The previous prime is 689757839. The next prime is 689757857. The reversal of 689757841 is 148757986.

689757841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 689757841 - 2¹ = 689757839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689757241) 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, 375796 + ... + 377626.

It is an arithmetic number, because the mean of its divisors is an integer number (86562000).

Almost surely, 2^689757841 is an apocalyptic number.

It is an amenable number.

689757841 is a deficient number, since it is larger than the sum of its proper divisors (2738159).

689757841 is a wasteful number, since it uses less digits than its factorization.

689757841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119.

The product of its digits is 3386880, while the sum is 55.

The square root of 689757841 is about 26263.2412508434. The cubic root of 689757841 is about 883.5522056739.

The spelling of 689757841 in words is "six hundred eighty-nine million, seven hundred fifty-seven thousand, eight hundred forty-one".