60770813 has 2 divisors, whose sum is σ = 60770814. Its totient is φ = 60770812.

The previous prime is 60770789. The next prime is 60770833. The reversal of 60770813 is 31807706.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60497284 + 273529 = 7778^2 + 523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60770813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 60770813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60770833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30385406 + 30385407.

It is an arithmetic number, because the mean of its divisors is an integer number (30385407).

Almost surely, 2^60770813 is an apocalyptic number.

It is an amenable number.

60770813 is a deficient number, since it is larger than the sum of its proper divisors (1).

60770813 is an equidigital number, since it uses as much as digits as its factorization.

60770813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 60770813 is about 7795.5636742958. The cubic root of 60770813 is about 393.1560974134.

The spelling of 60770813 in words is "sixty million, seven hundred seventy thousand, eight hundred thirteen".