689923212 has 96 divisors (see below), whose sum is σ = 1857945600. Its totient is φ = 197064000.

The previous prime is 689923211. The next prime is 689923243. The reversal of 689923212 is 212329986.

It is not an unprimeable number, because it can be changed into a prime (689923211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598837 + ... + 599987.

It is an arithmetic number, because the mean of its divisors is an integer number (19353600).

Almost surely, 2^689923212 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 689923212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928972800).

689923212 is an abundant number, since it is smaller than the sum of its proper divisors (1168022388).

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

689923212 is a wasteful number, since it uses less digits than its factorization.

689923212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427 (or 1425 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 689923212 is about 26266.3893978598. The cubic root of 689923212 is about 883.6228112438.

The spelling of 689923212 in words is "six hundred eighty-nine million, nine hundred twenty-three thousand, two hundred twelve".