689954676 has 48 divisors (see below), whose sum is σ = 1703338560. Its totient is φ = 216760320.

The previous prime is 689954669. The next prime is 689954701. The reversal of 689954676 is 676459986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37236 + ... + 52596.

It is an arithmetic number, because the mean of its divisors is an integer number (35486220).

Almost surely, 2^689954676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 689954676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851669280).

689954676 is an abundant number, since it is smaller than the sum of its proper divisors (1013383884).

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

689954676 is a wasteful number, since it uses less digits than its factorization.

689954676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15584 (or 15582 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The square root of 689954676 is about 26266.9883313638. The cubic root of 689954676 is about 883.6362436012.

The spelling of 689954676 in words is "six hundred eighty-nine million, nine hundred fifty-four thousand, six hundred seventy-six".