61695659 has 2 divisors, whose sum is σ = 61695660. Its totient is φ = 61695658.

The previous prime is 61695619. The next prime is 61695671. The reversal of 61695659 is 95659616.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61695659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61695619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30847829 + 30847830.

It is an arithmetic number, because the mean of its divisors is an integer number (30847830).

Almost surely, 2^61695659 is an apocalyptic number.

61695659 is a deficient number, since it is larger than the sum of its proper divisors (1).

61695659 is an equidigital number, since it uses as much as digits as its factorization.

61695659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 47.

The square root of 61695659 is about 7854.6584266918. The cubic root of 61695659 is about 395.1404916046.

The spelling of 61695659 in words is "sixty-one million, six hundred ninety-five thousand, six hundred fifty-nine".