689771382 has 16 divisors (see below), whose sum is σ = 1381519152. Its totient is φ = 229594400.

The previous prime is 689771377. The next prime is 689771387. The reversal of 689771382 is 283177986.

689771382 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 (689771377) and next prime (689771387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689771387) 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, 77793 + ... + 86204.

It is an arithmetic number, because the mean of its divisors is an integer number (86344947).

Almost surely, 2^689771382 is an apocalyptic number.

689771382 is an abundant number, since it is smaller than the sum of its proper divisors (691747770).

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

689771382 is a wasteful number, since it uses less digits than its factorization.

689771382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164703.

The product of its digits is 1016064, while the sum is 51.

The square root of 689771382 is about 26263.4990433491. The cubic root of 689771382 is about 883.5579874626.

The spelling of 689771382 in words is "six hundred eighty-nine million, seven hundred seventy-one thousand, three hundred eighty-two".