689359212 has 72 divisors (see below), whose sum is σ = 1777107696. Its totient is φ = 225275904.

The previous prime is 689359169. The next prime is 689359213. The reversal of 689359212 is 212953986.

689359212 is a `hidden beast` number, since 6 + 89 + 359 + 212 = 666.

It is a super-2 number, since 2×689359212² = 950432246338521888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (689359213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393723 + ... + 395469.

Almost surely, 2^689359212 is an apocalyptic number.

It is an amenable number.

689359212 is an abundant number, since it is smaller than the sum of its proper divisors (1087748484).

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

689359212 is a wasteful number, since it uses less digits than its factorization.

689359212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1962 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 689359212 is about 26255.6510488695. The cubic root of 689359212 is about 883.3819636057.

The spelling of 689359212 in words is "six hundred eighty-nine million, three hundred fifty-nine thousand, two hundred twelve".