60978217 has 2 divisors, whose sum is σ = 60978218. Its totient is φ = 60978216.

The previous prime is 60978173. The next prime is 60978227. The reversal of 60978217 is 71287906.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45954841 + 15023376 = 6779^2 + 3876^2 .

It is a cyclic number.

It is not a de Polignac number, because 60978217 - 2⁷ = 60978089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 60978217.

It is not a weakly prime, because it can be changed into another prime (60978227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30489108 + 30489109.

It is an arithmetic number, because the mean of its divisors is an integer number (30489109).

Almost surely, 2^60978217 is an apocalyptic number.

It is an amenable number.

60978217 is a deficient number, since it is larger than the sum of its proper divisors (1).

60978217 is an equidigital number, since it uses as much as digits as its factorization.

60978217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 60978217 is about 7808.8550377120. The cubic root of 60978217 is about 393.6028555085.

The spelling of 60978217 in words is "sixty million, nine hundred seventy-eight thousand, two hundred seventeen".