1689913212 has 24 divisors (see below), whose sum is σ = 4246448976. Its totient is φ = 519973248.

The previous prime is 1689913189. The next prime is 1689913213. The reversal of 1689913212 is 2123199861.

1689913212 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689913213) 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, 5416233 + ... + 5416544.

It is an arithmetic number, because the mean of its divisors is an integer number (176935374).

Almost surely, 2^1689913212 is an apocalyptic number.

1689913212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1689913212 is an abundant number, since it is smaller than the sum of its proper divisors (2556535764).

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

1689913212 is a wasteful number, since it uses less digits than its factorization.

1689913212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832797 (or 10832795 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 1689913212 is about 41108.5540003537. The cubic root of 1689913212 is about 1191.1180350009.

The spelling of 1689913212 in words is "one billion, six hundred eighty-nine million, nine hundred thirteen thousand, two hundred twelve".