207966939 has 8 divisors (see below), whose sum is σ = 277396560. Its totient is φ = 138590976.

The previous prime is 207966931. The next prime is 207966961. The reversal of 207966939 is 939669702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 207966939 - 2³ = 207966931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 207966891 and 207966900.

It is not an unprimeable number, because it can be changed into a prime (207966931) 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, 3274 + ... + 20655.

It is an arithmetic number, because the mean of its divisors is an integer number (34674570).

Almost surely, 2^207966939 is an apocalyptic number.

207966939 is a deficient number, since it is larger than the sum of its proper divisors (69429621).

207966939 is a wasteful number, since it uses less digits than its factorization.

207966939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26829.

The product of its (nonzero) digits is 1102248, while the sum is 51.

The square root of 207966939 is about 14421.0588723575. The cubic root of 207966939 is about 592.4678200045.

The spelling of 207966939 in words is "two hundred seven million, nine hundred sixty-six thousand, nine hundred thirty-nine".