59721 has 8 divisors (see below), whose sum is σ = 84384. Its totient is φ = 37440.

The previous prime is 59707. The next prime is 59723. The reversal of 59721 is 12795.

59721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 59721 - 2⁹ = 59209 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 59691 and 59700.

It is not an unprimeable number, because it can be changed into a prime (59723) 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, 535 + ... + 636.

It is an arithmetic number, because the mean of its divisors is an integer number (10548).

2⁵⁹⁷²¹ is an apocalyptic number.

59721 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

59721 is a deficient number, since it is larger than the sum of its proper divisors (24663).

59721 is a wasteful number, since it uses less digits than its factorization.

59721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its digits is 630, while the sum is 24.

The square root of 59721 is about 244.3788043182. The cubic root of 59721 is about 39.0879016648.

It can be divided in two parts, 59 and 721, that added together give a triangular number (780 = T₃₉).

The spelling of 59721 in words is "fifty-nine thousand, seven hundred twenty-one".