60721768 has 8 divisors (see below), whose sum is σ = 113853330. Its totient is φ = 30360880.

The previous prime is 60721757. The next prime is 60721769. The reversal of 60721768 is 86712706.

It is a happy number.

60721768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30669444 + 30052324 = 5538^2 + 5482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (60721769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3795103 + ... + 3795118.

Almost surely, 2^60721768 is an apocalyptic number.

It is an amenable number.

60721768 is a deficient number, since it is larger than the sum of its proper divisors (53131562).

60721768 is a wasteful number, since it uses less digits than its factorization.

60721768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590227 (or 7590223 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 60721768 is about 7792.4173399530. The cubic root of 60721768 is about 393.0503035877.

The spelling of 60721768 in words is "sixty million, seven hundred twenty-one thousand, seven hundred sixty-eight".