207693216 has 144 divisors (see below), whose sum is σ = 636854400. Its totient is φ = 63965184.

The previous prime is 207693191. The next prime is 207693221. The reversal of 207693216 is 612396702.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288505 + ... + 289223.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 2^207693216 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 207693216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318427200).

207693216 is an abundant number, since it is smaller than the sum of its proper divisors (429161184).

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

207693216 is a wasteful number, since it uses less digits than its factorization.

207693216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 207693216 is about 14411.5653556441. The cubic root of 207693216 is about 592.2077734294.

The spelling of 207693216 in words is "two hundred seven million, six hundred ninety-three thousand, two hundred sixteen".