61061717 has 2 divisors, whose sum is σ = 61061718. Its totient is φ = 61061716.

The previous prime is 61061699. The next prime is 61061753. The reversal of 61061717 is 71716016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 206116 = 7801^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 61061717 - 2²² = 56867413 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61061717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61061317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530858 + 30530859.

It is an arithmetic number, because the mean of its divisors is an integer number (30530859).

Almost surely, 2^61061717 is an apocalyptic number.

It is an amenable number.

61061717 is a deficient number, since it is larger than the sum of its proper divisors (1).

61061717 is an equidigital number, since it uses as much as digits as its factorization.

61061717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 61061717 is about 7814.1997031046. The cubic root of 61061717 is about 393.7824324675.

The spelling of 61061717 in words is "sixty-one million, sixty-one thousand, seven hundred seventeen".