616671071 has 2 divisors, whose sum is σ = 616671072. Its totient is φ = 616671070.

The previous prime is 616671061. The next prime is 616671131. The reversal of 616671071 is 170176616.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616671071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616671031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308335535 + 308335536.

It is an arithmetic number, because the mean of its divisors is an integer number (308335536).

Almost surely, 2^616671071 is an apocalyptic number.

616671071 is a deficient number, since it is larger than the sum of its proper divisors (1).

616671071 is an equidigital number, since it uses as much as digits as its factorization.

616671071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 616671071 is about 24832.8627226101. The cubic root of 616671071 is about 851.1730383104.

The spelling of 616671071 in words is "six hundred sixteen million, six hundred seventy-one thousand, seventy-one".