616938349 has 2 divisors, whose sum is σ = 616938350. Its totient is φ = 616938348.

The previous prime is 616938317. The next prime is 616938389. The reversal of 616938349 is 943839616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610435849 + 6502500 = 24707^2 + 2550^2 .

It is a cyclic number.

It is not a de Polignac number, because 616938349 - 2⁵ = 616938317 is a prime.

It is a super-2 number, since 2×616938349² = 761225852933691602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616938389) 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, 308469174 + 308469175.

It is an arithmetic number, because the mean of its divisors is an integer number (308469175).

Almost surely, 2^616938349 is an apocalyptic number.

It is an amenable number.

616938349 is a deficient number, since it is larger than the sum of its proper divisors (1).

616938349 is an equidigital number, since it uses as much as digits as its factorization.

616938349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 616938349 is about 24838.2436778449. The cubic root of 616938349 is about 851.2959925498.

The spelling of 616938349 in words is "six hundred sixteen million, nine hundred thirty-eight thousand, three hundred forty-nine".