77968395 has 12 divisors (see below), whose sum is σ = 135145296. Its totient is φ = 41583120.

The previous prime is 77968357. The next prime is 77968411. The reversal of 77968395 is 59386977.

It is not a de Polignac number, because 77968395 - 2¹³ = 77960203 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 866271 + ... + 866360.

It is an arithmetic number, because the mean of its divisors is an integer number (11262108).

Almost surely, 2^77968395 is an apocalyptic number.

77968395 is a deficient number, since it is larger than the sum of its proper divisors (57176901).

77968395 is a wasteful number, since it uses less digits than its factorization.

77968395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732642 (or 1732639 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 77968395 is about 8829.9714042572. The cubic root of 77968395 is about 427.2081520927.

The spelling of 77968395 in words is "seventy-seven million, nine hundred sixty-eight thousand, three hundred ninety-five".