60778831 has 2 divisors, whose sum is σ = 60778832. Its totient is φ = 60778830.

The previous prime is 60778829. The next prime is 60778841. The reversal of 60778831 is 13887706.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60778831 - 2¹ = 60778829 is a prime.

It is a super-2 number, since 2×60778831² = 7388132595453122, which contains 22 as substring.

Together with 60778829, 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 (60778801) 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, 30389415 + 30389416.

It is an arithmetic number, because the mean of its divisors is an integer number (30389416).

Almost surely, 2^60778831 is an apocalyptic number.

60778831 is a deficient number, since it is larger than the sum of its proper divisors (1).

60778831 is an equidigital number, since it uses as much as digits as its factorization.

60778831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 60778831 is about 7796.0779241873. The cubic root of 60778831 is about 393.1733874402.

The spelling of 60778831 in words is "sixty million, seven hundred seventy-eight thousand, eight hundred thirty-one".