60721753 has 2 divisors, whose sum is σ = 60721754. Its totient is φ = 60721752.

The previous prime is 60721741. The next prime is 60721757. The reversal of 60721753 is 35712706.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58247424 + 2474329 = 7632^2 + 1573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60721753 is a prime.

It is not a weakly prime, because it can be changed into another prime (60721757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30360876 + 30360877.

It is an arithmetic number, because the mean of its divisors is an integer number (30360877).

Almost surely, 2^60721753 is an apocalyptic number.

It is an amenable number.

60721753 is a deficient number, since it is larger than the sum of its proper divisors (1).

60721753 is an equidigital number, since it uses as much as digits as its factorization.

60721753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 60721753 is about 7792.4163774788. The cubic root of 60721753 is about 393.0502712229.

The spelling of 60721753 in words is "sixty million, seven hundred twenty-one thousand, seven hundred fifty-three".