616743077 has 2 divisors, whose sum is σ = 616743078. Its totient is φ = 616743076.

The previous prime is 616743019. The next prime is 616743079. The reversal of 616743077 is 770347616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387341761 + 229401316 = 19681^2 + 15146^2 .

It is a cyclic number.

It is not a de Polignac number, because 616743077 - 2⁶ = 616743013 is a prime.

Together with 616743079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616743079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308371538 + 308371539.

It is an arithmetic number, because the mean of its divisors is an integer number (308371539).

Almost surely, 2^616743077 is an apocalyptic number.

It is an amenable number.

616743077 is a deficient number, since it is larger than the sum of its proper divisors (1).

616743077 is an equidigital number, since it uses as much as digits as its factorization.

616743077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 616743077 is about 24834.3124930005. The cubic root of 616743077 is about 851.2061662794.

The spelling of 616743077 in words is "six hundred sixteen million, seven hundred forty-three thousand, seventy-seven".