207942939 has 24 divisors (see below), whose sum is σ = 310473072. Its totient is φ = 134023680.

The previous prime is 207942937. The next prime is 207942953. The reversal of 207942939 is 939249702.

It is not a de Polignac number, because 207942939 - 2¹ = 207942937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 207942894 and 207942903.

It is not an unprimeable number, because it can be changed into a prime (207942937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39204 + ... + 44190.

It is an arithmetic number, because the mean of its divisors is an integer number (12936378).

Almost surely, 2^207942939 is an apocalyptic number.

207942939 is a deficient number, since it is larger than the sum of its proper divisors (102530133).

207942939 is a wasteful number, since it uses less digits than its factorization.

207942939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5144 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 207942939 is about 14420.2267319207. The cubic root of 207942939 is about 592.4450282813.

The spelling of 207942939 in words is "two hundred seven million, nine hundred forty-two thousand, nine hundred thirty-nine".