210989712 has 20 divisors (see below), whose sum is σ = 545056880. Its totient is φ = 70329888.

The previous prime is 210989687. The next prime is 210989717. The reversal of 210989712 is 217989012.

It is not an unprimeable number, because it can be changed into a prime (210989717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2197762 + ... + 2197857.

It is an arithmetic number, because the mean of its divisors is an integer number (27252844).

Almost surely, 2^210989712 is an apocalyptic number.

It is an amenable number.

210989712 is an abundant number, since it is smaller than the sum of its proper divisors (334067168).

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

210989712 is a wasteful number, since it uses less digits than its factorization.

210989712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395630 (or 4395624 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 210989712 is about 14525.4849144529. The cubic root of 210989712 is about 595.3245053303.

The spelling of 210989712 in words is "two hundred ten million, nine hundred eighty-nine thousand, seven hundred twelve".