60728913 has 64 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 31795200.

The previous prime is 60728911. The next prime is 60728917. The reversal of 60728913 is 31982706.

It is not a de Polignac number, because 60728913 - 2¹ = 60728911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60728911) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131503 + ... + 131963.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^60728913 is an apocalyptic number.

60728913 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

60728913 is a deficient number, since it is larger than the sum of its proper divisors (51038127).

60728913 is a wasteful number, since it uses less digits than its factorization.

60728913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 60728913 is about 7792.8757849718. The cubic root of 60728913 is about 393.0657194447.

The spelling of 60728913 in words is "sixty million, seven hundred twenty-eight thousand, nine hundred thirteen".