61712471 has 2 divisors, whose sum is σ = 61712472. Its totient is φ = 61712470.

The previous prime is 61712449. The next prime is 61712479. The reversal of 61712471 is 17421716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61712471 - 2¹⁸ = 61450327 is a prime.

It is a super-3 number, since 3×61712471³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain 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 (61712479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30856235 + 30856236.

It is an arithmetic number, because the mean of its divisors is an integer number (30856236).

Almost surely, 2^61712471 is an apocalyptic number.

61712471 is a deficient number, since it is larger than the sum of its proper divisors (1).

61712471 is an equidigital number, since it uses as much as digits as its factorization.

61712471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 29.

The square root of 61712471 is about 7855.7285467358. The cubic root of 61712471 is about 395.1763801297.

The spelling of 61712471 in words is "sixty-one million, seven hundred twelve thousand, four hundred seventy-one".