60087221 has 2 divisors, whose sum is σ = 60087222. Its totient is φ = 60087220.

The previous prime is 60087199. The next prime is 60087227. The reversal of 60087221 is 12278006.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40462321 + 19624900 = 6361^2 + 4430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60087221 is a prime.

It is a super-2 number, since 2×60087221² = 7220948255005682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60087227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30043610 + 30043611.

It is an arithmetic number, because the mean of its divisors is an integer number (30043611).

Almost surely, 2^60087221 is an apocalyptic number.

It is an amenable number.

60087221 is a deficient number, since it is larger than the sum of its proper divisors (1).

60087221 is an equidigital number, since it uses as much as digits as its factorization.

60087221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 60087221 is about 7751.5947391488. The cubic root of 60087221 is about 391.6763715316.

The spelling of 60087221 in words is "sixty million, eighty-seven thousand, two hundred twenty-one".