77742063 has 12 divisors (see below), whose sum is σ = 128336208. Its totient is φ = 44424000.

The previous prime is 77742059. The next prime is 77742073. The reversal of 77742063 is 36024777.

It is not a de Polignac number, because 77742063 - 2² = 77742059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77742013) 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 in 11 ways as a sum of consecutive naturals, for example, 616938 + ... + 617063.

It is an arithmetic number, because the mean of its divisors is an integer number (10694684).

Almost surely, 2^77742063 is an apocalyptic number.

77742063 is a deficient number, since it is larger than the sum of its proper divisors (50594145).

77742063 is a wasteful number, since it uses less digits than its factorization.

77742063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234014 (or 1234011 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 77742063 is about 8817.1459668081. The cubic root of 77742063 is about 426.7943750874.

The spelling of 77742063 in words is "seventy-seven million, seven hundred forty-two thousand, sixty-three".