61339671 has 12 divisors (see below), whose sum is σ = 89147448. Its totient is φ = 40641264.

The previous prime is 61339661. The next prime is 61339679. The reversal of 61339671 is 17693316.

61339671 is a `hidden beast` number, since 613 + 39 + 6 + 7 + 1 = 666.

It is not a de Polignac number, because 61339671 - 2¹⁴ = 61323287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61339679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19440 + ... + 22373.

It is an arithmetic number, because the mean of its divisors is an integer number (7428954).

Almost surely, 2^61339671 is an apocalyptic number.

61339671 is a deficient number, since it is larger than the sum of its proper divisors (27807777).

61339671 is a wasteful number, since it uses less digits than its factorization.

61339671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41982 (or 41979 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 61339671 is about 7831.9646960389. The cubic root of 61339671 is about 394.3790296394.

The spelling of 61339671 in words is "sixty-one million, three hundred thirty-nine thousand, six hundred seventy-one".