60287891 has 4 divisors (see below), whose sum is σ = 60307392. Its totient is φ = 60268392.

The previous prime is 60287881. The next prime is 60287921. The reversal of 60287891 is 19878206.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19878206 = 2 ⋅9939103.

It is a cyclic number.

It is not a de Polignac number, because 60287891 - 2¹⁴ = 60271507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60287861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971 + ... + 11676.

It is an arithmetic number, because the mean of its divisors is an integer number (15076848).

Almost surely, 2^60287891 is an apocalyptic number.

60287891 is a deficient number, since it is larger than the sum of its proper divisors (19501).

60287891 is a wasteful number, since it uses less digits than its factorization.

60287891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 60287891 is about 7764.5277383753. The cubic root of 60287891 is about 392.1119070859. Note that the first 3 decimals are identical.

The spelling of 60287891 in words is "sixty million, two hundred eighty-seven thousand, eight hundred ninety-one".