60391 has 4 divisors (see below), whose sum is σ = 60984. Its totient is φ = 59800.

The previous prime is 60383. The next prime is 60397. The reversal of 60391 is 19306.

It is a semiprime because it is the product of two primes, 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 60391 - 2³ = 60383 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 (60397) 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, 100 + ... + 361.

It is an arithmetic number, because the mean of its divisors is an integer number (15246).

2⁶⁰³⁹¹ is an apocalyptic number.

60391 is a deficient number, since it is larger than the sum of its proper divisors (593).

60391 is a wasteful number, since it uses less digits than its factorization.

60391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 60391 is about 245.7458036264. The cubic root of 60391 is about 39.2335319775.

Adding to 60391 its reverse (19306), we get a palindrome (79697).

The spelling of 60391 in words is "sixty thousand, three hundred ninety-one".