59861 has 4 divisors (see below), whose sum is σ = 61824. Its totient is φ = 57900.

The previous prime is 59833. The next prime is 59863. The reversal of 59861 is 16895.

59861 = T₄₆ + T₄₇ + ... + T₇₆.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 59861 - 2⁶ = 59797 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (59863) 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, 935 + ... + 996.

It is an arithmetic number, because the mean of its divisors is an integer number (15456).

2⁵⁹⁸⁶¹ is an apocalyptic number.

It is an amenable number.

59861 is a deficient number, since it is larger than the sum of its proper divisors (1963).

59861 is a wasteful number, since it uses less digits than its factorization.

59861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962.

The product of its digits is 2160, while the sum is 29.

The square root of 59861 is about 244.6650771974. The cubic root of 59861 is about 39.1184215583.

The spelling of 59861 in words is "fifty-nine thousand, eight hundred sixty-one".