60728891 has 4 divisors (see below), whose sum is σ = 60762000. Its totient is φ = 60695784.

The previous prime is 60728881. The next prime is 60728893. The reversal of 60728891 is 19882706.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 60728891 - 2¹⁰ = 60727867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60728893) 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, 13631 + ... + 17528.

It is an arithmetic number, because the mean of its divisors is an integer number (15190500).

Almost surely, 2^60728891 is an apocalyptic number.

60728891 is a deficient number, since it is larger than the sum of its proper divisors (33109).

60728891 is a wasteful number, since it uses less digits than its factorization.

60728891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33108.

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

The square root of 60728891 is about 7792.8743734260. The cubic root of 60728891 is about 393.0656719800.

The spelling of 60728891 in words is "sixty million, seven hundred twenty-eight thousand, eight hundred ninety-one".