206931712 has 54 divisors (see below), whose sum is σ = 447366192. Its totient is φ = 95486976.

The previous prime is 206931707. The next prime is 206931719. The reversal of 206931712 is 217139602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206931719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40873 + ... + 45655.

Almost surely, 2^206931712 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 206931712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223683096).

206931712 is an abundant number, since it is smaller than the sum of its proper divisors (240434480).

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

206931712 is an equidigital number, since it uses as much as digits as its factorization.

206931712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 206931712 is about 14385.1212021310. The cubic root of 206931712 is about 591.4831134736.

The spelling of 206931712 in words is "two hundred six million, nine hundred thirty-one thousand, seven hundred twelve".