77934305 has 8 divisors (see below), whose sum is σ = 93647400. Its totient is φ = 62263296.

The previous prime is 77934299. The next prime is 77934331. The reversal of 77934305 is 50343977.

It can be written as a sum of positive squares in 4 ways, for example, as 12453841 + 65480464 = 3529^2 + 8092^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77934305 - 2²⁰ = 76885729 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 6290 + ... + 13979.

It is an arithmetic number, because the mean of its divisors is an integer number (11705925).

Almost surely, 2^77934305 is an apocalyptic number.

It is an amenable number.

77934305 is a deficient number, since it is larger than the sum of its proper divisors (15713095).

77934305 is a wasteful number, since it uses less digits than its factorization.

77934305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21043.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 77934305 is about 8828.0408358820. The cubic root of 77934305 is about 427.1458804977.

The spelling of 77934305 in words is "seventy-seven million, nine hundred thirty-four thousand, three hundred five".