207639072 has 96 divisors (see below), whose sum is σ = 626572800. Its totient is φ = 66818304.

The previous prime is 207639041. The next prime is 207639119. The reversal of 207639072 is 270936702.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×207639072² = 86227968442042368, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 20913 + ... + 29199.

It is an arithmetic number, because the mean of its divisors is an integer number (6526800).

Almost surely, 2^207639072 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 207639072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313286400).

207639072 is an abundant number, since it is smaller than the sum of its proper divisors (418933728).

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

207639072 is a wasteful number, since it uses less digits than its factorization.

207639072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 207639072 is about 14409.6867419108. The cubic root of 207639072 is about 592.1563076424.

The spelling of 207639072 in words is "two hundred seven million, six hundred thirty-nine thousand, seventy-two".