61067717 has 2 divisors, whose sum is σ = 61067718. Its totient is φ = 61067716.

The previous prime is 61067693. The next prime is 61067777. The reversal of 61067717 is 71776016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32273761 + 28793956 = 5681^2 + 5366^2 .

It is a cyclic number.

It is not a de Polignac number, because 61067717 - 2¹⁶ = 61002181 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 (61067777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30533858 + 30533859.

It is an arithmetic number, because the mean of its divisors is an integer number (30533859).

Almost surely, 2^61067717 is an apocalyptic number.

It is an amenable number.

61067717 is a deficient number, since it is larger than the sum of its proper divisors (1).

61067717 is an equidigital number, since it uses as much as digits as its factorization.

61067717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 61067717 is about 7814.5836101484. The cubic root of 61067717 is about 393.7953298951.

The spelling of 61067717 in words is "sixty-one million, sixty-seven thousand, seven hundred seventeen".