60517979 has 2 divisors, whose sum is σ = 60517980. Its totient is φ = 60517978.

The previous prime is 60517901. The next prime is 60517981. The reversal of 60517979 is 97971506.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60517979 is a prime.

Together with 60517981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60517279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30258989 + 30258990.

It is an arithmetic number, because the mean of its divisors is an integer number (30258990).

Almost surely, 2^60517979 is an apocalyptic number.

60517979 is a deficient number, since it is larger than the sum of its proper divisors (1).

60517979 is an equidigital number, since it uses as much as digits as its factorization.

60517979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 60517979 is about 7779.3302410940. The cubic root of 60517979 is about 392.6101039371.

The spelling of 60517979 in words is "sixty million, five hundred seventeen thousand, nine hundred seventy-nine".