239627508997 has 2 divisors, whose sum is σ = 239627508998. Its totient is φ = 239627508996.

The previous prime is 239627508931. The next prime is 239627509007. The reversal of 239627508997 is 799805726932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137942416836 + 101685092161 = 371406^2 + 318881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239627508997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239627508097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119813754498 + 119813754499.

It is an arithmetic number, because the mean of its divisors is an integer number (119813754499).

Almost surely, 2^239627508997 is an apocalyptic number.

It is an amenable number.

239627508997 is a deficient number, since it is larger than the sum of its proper divisors (1).

239627508997 is an equidigital number, since it uses as much as digits as its factorization.

239627508997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102876480, while the sum is 67.

The spelling of 239627508997 in words is "two hundred thirty-nine billion, six hundred twenty-seven million, five hundred eight thousand, nine hundred ninety-seven".