61968171 has 4 divisors (see below), whose sum is σ = 82624232. Its totient is φ = 41312112.

The previous prime is 61968143. The next prime is 61968173. The reversal of 61968171 is 17186916.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61968171 - 2¹⁹ = 61443883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61968173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10328026 + ... + 10328031.

It is an arithmetic number, because the mean of its divisors is an integer number (20656058).

Almost surely, 2^61968171 is an apocalyptic number.

61968171 is a deficient number, since it is larger than the sum of its proper divisors (20656061).

61968171 is a wasteful number, since it uses less digits than its factorization.

61968171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20656060.

The product of its digits is 18144, while the sum is 39.

The square root of 61968171 is about 7871.9864710250. The cubic root of 61968171 is about 395.7214204865.

The spelling of 61968171 in words is "sixty-one million, nine hundred sixty-eight thousand, one hundred seventy-one".