60921587 has 2 divisors, whose sum is σ = 60921588. Its totient is φ = 60921586.

The previous prime is 60921569. The next prime is 60921599. The reversal of 60921587 is 78512906.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 60921587 - 2⁸ = 60921331 is a prime.

It is a super-2 number, since 2×60921587² = 7422879525197138, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 60921587.

It is not a weakly prime, because it can be changed into another prime (60921527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30460793 + 30460794.

It is an arithmetic number, because the mean of its divisors is an integer number (30460794).

Almost surely, 2^60921587 is an apocalyptic number.

60921587 is a deficient number, since it is larger than the sum of its proper divisors (1).

60921587 is an equidigital number, since it uses as much as digits as its factorization.

60921587 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 60921587 is about 7805.2281837240. The cubic root of 60921587 is about 393.4809724577.

The spelling of 60921587 in words is "sixty million, nine hundred twenty-one thousand, five hundred eighty-seven".