616722263 has 2 divisors, whose sum is σ = 616722264. Its totient is φ = 616722262.

The previous prime is 616722251. The next prime is 616722283. The reversal of 616722263 is 362227616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616722263 - 2⁶ = 616722199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616722233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308361131 + 308361132.

It is an arithmetic number, because the mean of its divisors is an integer number (308361132).

Almost surely, 2^616722263 is an apocalyptic number.

616722263 is a deficient number, since it is larger than the sum of its proper divisors (1).

616722263 is an equidigital number, since it uses as much as digits as its factorization.

616722263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 616722263 is about 24833.8934321624. The cubic root of 616722263 is about 851.1965905987.

Adding to 616722263 its reverse (362227616), we get a palindrome (978949879).

The spelling of 616722263 in words is "six hundred sixteen million, seven hundred twenty-two thousand, two hundred sixty-three".