77964305 has 16 divisors (see below), whose sum is σ = 96505344. Its totient is φ = 60432960.

The previous prime is 77964301. The next prime is 77964323. The reversal of 77964305 is 50346977.

It is not a de Polignac number, because 77964305 - 2² = 77964301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77964301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22595 + ... + 25815.

It is an arithmetic number, because the mean of its divisors is an integer number (6031584).

Almost surely, 2^77964305 is an apocalyptic number.

It is an amenable number.

77964305 is a deficient number, since it is larger than the sum of its proper divisors (18541039).

77964305 is a wasteful number, since it uses less digits than its factorization.

77964305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 77964305 is about 8829.7398036409. The cubic root of 77964305 is about 427.2006819210.

The spelling of 77964305 in words is "seventy-seven million, nine hundred sixty-four thousand, three hundred five".