61616017 has 2 divisors, whose sum is σ = 61616018. Its totient is φ = 61616016.

The previous prime is 61615999. The next prime is 61616047. The reversal of 61616017 is 71061616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61606801 + 9216 = 7849^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 61616017 - 2⁷ = 61615889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61616047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30808008 + 30808009.

It is an arithmetic number, because the mean of its divisors is an integer number (30808009).

Almost surely, 2^61616017 is an apocalyptic number.

It is an amenable number.

61616017 is a deficient number, since it is larger than the sum of its proper divisors (1).

61616017 is an equidigital number, since it uses as much as digits as its factorization.

61616017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 61616017 is about 7849.5870592025. The cubic root of 61616017 is about 394.9703914141.

The spelling of 61616017 in words is "sixty-one million, six hundred sixteen thousand, seventeen".