616239047 has 2 divisors, whose sum is σ = 616239048. Its totient is φ = 616239046.

The previous prime is 616239037. The next prime is 616239053. The reversal of 616239047 is 740932616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616239047 - 2²⁴ = 599461831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616239047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616239007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308119523 + 308119524.

It is an arithmetic number, because the mean of its divisors is an integer number (308119524).

Almost surely, 2^616239047 is an apocalyptic number.

616239047 is a deficient number, since it is larger than the sum of its proper divisors (1).

616239047 is an equidigital number, since it uses as much as digits as its factorization.

616239047 is an odious number, because the sum of its binary digits is odd.

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

The square root of 616239047 is about 24824.1625639215. The cubic root of 616239047 is about 850.9742218452.

The spelling of 616239047 in words is "six hundred sixteen million, two hundred thirty-nine thousand, forty-seven".