207944039 has 2 divisors, whose sum is σ = 207944040. Its totient is φ = 207944038.

The previous prime is 207944021. The next prime is 207944053. The reversal of 207944039 is 930449702.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207944039 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 207943993 and 207944011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207944089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103972019 + 103972020.

It is an arithmetic number, because the mean of its divisors is an integer number (103972020).

Almost surely, 2^207944039 is an apocalyptic number.

207944039 is a deficient number, since it is larger than the sum of its proper divisors (1).

207944039 is an equidigital number, since it uses as much as digits as its factorization.

207944039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 207944039 is about 14420.2648727407. The cubic root of 207944039 is about 592.4460729403.

The spelling of 207944039 in words is "two hundred seven million, nine hundred forty-four thousand, thirty-nine".