61716171 has 48 divisors (see below), whose sum is σ = 97790112. Its totient is φ = 34467840.

The previous prime is 61716169. The next prime is 61716173. The reversal of 61716171 is 17161716.

It is an interprime number because it is at equal distance from previous prime (61716169) and next prime (61716173).

It is not a de Polignac number, because 61716171 - 2¹ = 61716169 is a prime.

Its product of digits (1764) is a multiple of the sum of its prime factors (252).

It is not an unprimeable number, because it can be changed into a prime (61716173) 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 in 47 ways as a sum of consecutive naturals, for example, 450415 + ... + 450551.

It is an arithmetic number, because the mean of its divisors is an integer number (2037294).

Almost surely, 2^61716171 is an apocalyptic number.

61716171 is a deficient number, since it is larger than the sum of its proper divisors (36073941).

61716171 is a wasteful number, since it uses less digits than its factorization.

61716171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 241 counting only the distinct ones).

The product of its digits is 1764, while the sum is 30.

The square root of 61716171 is about 7855.9640401417. The cubic root of 61716171 is about 395.1842776333.

Adding to 61716171 its reverse (17161716), we get a palindrome (78877887).

The spelling of 61716171 in words is "sixty-one million, seven hundred sixteen thousand, one hundred seventy-one".