77348066 has 4 divisors (see below), whose sum is σ = 116022102. Its totient is φ = 38674032.

The previous prime is 77348023. The next prime is 77348071. The reversal of 77348066 is 66084377.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75603025 + 1745041 = 8695^2 + 1321^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19337015 + ... + 19337018.

Almost surely, 2^77348066 is an apocalyptic number.

77348066 is a deficient number, since it is larger than the sum of its proper divisors (38674036).

77348066 is a wasteful number, since it uses less digits than its factorization.

77348066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38674035.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 77348066 is about 8794.7749260569. The cubic root of 77348066 is about 426.0721552636.

The spelling of 77348066 in words is "seventy-seven million, three hundred forty-eight thousand, sixty-six".