60721589 has 2 divisors, whose sum is σ = 60721590. Its totient is φ = 60721588.

The previous prime is 60721579. The next prime is 60721601. The reversal of 60721589 is 98512706.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 22800625 = 6158^2 + 4775^2 .

It is a cyclic number.

It is not a de Polignac number, because 60721589 - 2⁸ = 60721333 is a prime.

It is a super-2 number, since 2×60721589² = 7374222741369842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60721519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30360794 + 30360795.

It is an arithmetic number, because the mean of its divisors is an integer number (30360795).

Almost surely, 2^60721589 is an apocalyptic number.

It is an amenable number.

60721589 is a deficient number, since it is larger than the sum of its proper divisors (1).

60721589 is an equidigital number, since it uses as much as digits as its factorization.

60721589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 60721589 is about 7792.4058544201. The cubic root of 60721589 is about 393.0499173667.

The spelling of 60721589 in words is "sixty million, seven hundred twenty-one thousand, five hundred eighty-nine".