60778829 has 2 divisors, whose sum is σ = 60778830. Its totient is φ = 60778828.

The previous prime is 60778813. The next prime is 60778831. The reversal of 60778829 is 92887706.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39664804 + 21114025 = 6298^2 + 4595^2 .

It is a cyclic number.

It is not a de Polignac number, because 60778829 - 2⁴ = 60778813 is a prime.

It is a super-2 number, since 2×60778829² = 7388132109222482, which contains 22 as substring.

Together with 60778831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60718829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30389414 + 30389415.

It is an arithmetic number, because the mean of its divisors is an integer number (30389415).

Almost surely, 2^60778829 is an apocalyptic number.

It is an amenable number.

60778829 is a deficient number, since it is larger than the sum of its proper divisors (1).

60778829 is an equidigital number, since it uses as much as digits as its factorization.

60778829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 60778829 is about 7796.0777959176. The cubic root of 60778829 is about 393.1733831276.

The spelling of 60778829 in words is "sixty million, seven hundred seventy-eight thousand, eight hundred twenty-nine".