689545911 has 8 divisors (see below), whose sum is σ = 959368320. Its totient is φ = 439710392.

The previous prime is 689545903. The next prime is 689545919. The reversal of 689545911 is 119545986.

689545911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (689545903) and next prime (689545919).

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 689545911 - 2³ = 689545903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689545919) 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, 4996641 + ... + 4996778.

It is an arithmetic number, because the mean of its divisors is an integer number (119921040).

Almost surely, 2^689545911 is an apocalyptic number.

689545911 is a deficient number, since it is larger than the sum of its proper divisors (269822409).

689545911 is a wasteful number, since it uses less digits than its factorization.

689545911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9993445.

The product of its digits is 388800, while the sum is 48.

The square root of 689545911 is about 26259.2062142023. The cubic root of 689545911 is about 883.4617051200.

The spelling of 689545911 in words is "six hundred eighty-nine million, five hundred forty-five thousand, nine hundred eleven".