58861 has 4 divisors (see below), whose sum is σ = 64224. Its totient is φ = 53500.

The previous prime is 58831. The next prime is 58889. The reversal of 58861 is 16885.

It is a happy number.

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 58861 - 2⁷ = 58733 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (16056).

2⁵⁸⁸⁶¹ is an apocalyptic number.

58861 is the 109-th centered decagonal number.

It is an amenable number.

58861 is a deficient number, since it is larger than the sum of its proper divisors (5363).

58861 is a wasteful number, since it uses less digits than its factorization.

58861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362.

The product of its digits is 1920, while the sum is 28.

The square root of 58861 is about 242.6128603351. The cubic root of 58861 is about 38.8993679999.

It can be divided in two parts, 58 and 861, that added together give a palindrome (919).

The spelling of 58861 in words is "fifty-eight thousand, eight hundred sixty-one".