60965981 has 2 divisors, whose sum is σ = 60965982. Its totient is φ = 60965980.

The previous prime is 60965977. The next prime is 60965999. The reversal of 60965981 is 18956906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33235225 + 27730756 = 5765^2 + 5266^2 .

It is a cyclic number.

It is not a de Polignac number, because 60965981 - 2² = 60965977 is a prime.

It is a super-2 number, since 2×60965981² = 7433701678584722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60965911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30482990 + 30482991.

It is an arithmetic number, because the mean of its divisors is an integer number (30482991).

Almost surely, 2^60965981 is an apocalyptic number.

It is an amenable number.

60965981 is a deficient number, since it is larger than the sum of its proper divisors (1).

60965981 is an equidigital number, since it uses as much as digits as its factorization.

60965981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 60965981 is about 7808.0715288732. The cubic root of 60965981 is about 393.5765267256.

The spelling of 60965981 in words is "sixty million, nine hundred sixty-five thousand, nine hundred eighty-one".