60401721 has 16 divisors (see below), whose sum is σ = 82520064. Its totient is φ = 39281424.

The previous prime is 60401717. The next prime is 60401771. The reversal of 60401721 is 12710406.

60401721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 60401721 - 2² = 60401717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60401701) 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 in 15 ways as a sum of consecutive naturals, for example, 61980 + ... + 62946.

It is an arithmetic number, because the mean of its divisors is an integer number (5157504).

Almost surely, 2^60401721 is an apocalyptic number.

It is an amenable number.

60401721 is a deficient number, since it is larger than the sum of its proper divisors (22118343).

60401721 is a wasteful number, since it uses less digits than its factorization.

60401721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 60401721 is about 7771.8544119148. The cubic root of 60401721 is about 392.3585350336.

The spelling of 60401721 in words is "sixty million, four hundred one thousand, seven hundred twenty-one".