61711 has 8 divisors (see below), whose sum is σ = 68544. Its totient is φ = 55200.

The previous prime is 61703. The next prime is 61717. The reversal of 61711 is 11716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61711 - 2³ = 61703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (8568).

2⁶¹⁷¹¹ is an apocalyptic number.

61711 is a deficient number, since it is larger than the sum of its proper divisors (6833).

61711 is a wasteful number, since it uses less digits than its factorization.

61711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161.

The product of its digits is 42, while the sum is 16.

The square root of 61711 is about 248.4169881469. The cubic root of 61711 is about 39.5173240251.

The spelling of 61711 in words is "sixty-one thousand, seven hundred eleven".