59989 has 4 divisors (see below), whose sum is σ = 60480. Its totient is φ = 59500.

The previous prime is 59981. The next prime is 59999. The reversal of 59989 is 98995.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 59989 - 2³ = 59981 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 4 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (59981) 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, 114 + ... + 364.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2⁵⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

59989 is a deficient number, since it is larger than the sum of its proper divisors (491).

59989 is a wasteful number, since it uses less digits than its factorization.

59989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its digits is 29160, while the sum is 40.

The square root of 59989 is about 244.9265195931. The cubic root of 59989 is about 39.1462838464.

The spelling of 59989 in words is "fifty-nine thousand, nine hundred eighty-nine".