61716371 has 2 divisors, whose sum is σ = 61716372. Its totient is φ = 61716370.

The previous prime is 61716359. The next prime is 61716373. The reversal of 61716371 is 17361716.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61716371 is a prime.

Together with 61716373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61716373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30858185 + 30858186.

It is an arithmetic number, because the mean of its divisors is an integer number (30858186).

Almost surely, 2^61716371 is an apocalyptic number.

61716371 is a deficient number, since it is larger than the sum of its proper divisors (1).

61716371 is an equidigital number, since it uses as much as digits as its factorization.

61716371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 32.

The square root of 61716371 is about 7855.9767693139. The cubic root of 61716371 is about 395.1847045164.

The spelling of 61716371 in words is "sixty-one million, seven hundred sixteen thousand, three hundred seventy-one".