689771106 has 32 divisors (see below), whose sum is σ = 1554422400. Its totient is φ = 226684080.

The previous prime is 689771101. The next prime is 689771123. The reversal of 689771106 is 601177986.

It is not an unprimeable number, because it can be changed into a prime (689771101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86121 + ... + 93788.

It is an arithmetic number, because the mean of its divisors is an integer number (48575700).

Almost surely, 2^689771106 is an apocalyptic number.

689771106 is an abundant number, since it is smaller than the sum of its proper divisors (864651294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689771106 is a wasteful number, since it uses less digits than its factorization.

689771106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179991 (or 179985 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 689771106 is about 26263.4937889078. The cubic root of 689771106 is about 883.5578696158.

The spelling of 689771106 in words is "six hundred eighty-nine million, seven hundred seventy-one thousand, one hundred six".