689060091 has 8 divisors (see below), whose sum is σ = 938294784. Its totient is φ = 449599400.

The previous prime is 689060081. The next prime is 689060123. The reversal of 689060091 is 190060986.

689060091 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 689060091 - 2⁶ = 689060027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689060081) 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, 2443335 + ... + 2443616.

It is an arithmetic number, because the mean of its divisors is an integer number (117286848).

Almost surely, 2^689060091 is an apocalyptic number.

689060091 is a deficient number, since it is larger than the sum of its proper divisors (249234693).

689060091 is a wasteful number, since it uses less digits than its factorization.

689060091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887001.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 689060091 is about 26249.9541142456. The cubic root of 689060091 is about 883.2541752095.

The spelling of 689060091 in words is "six hundred eighty-nine million, sixty thousand, ninety-one".