77945095 has 4 divisors (see below), whose sum is σ = 93534120. Its totient is φ = 62356072.

The previous prime is 77945089. The next prime is 77945159. The reversal of 77945095 is 59054977.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 77945095 - 2⁹ = 77944583 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7794505 + ... + 7794514.

It is an arithmetic number, because the mean of its divisors is an integer number (23383530).

Almost surely, 2^77945095 is an apocalyptic number.

77945095 is a deficient number, since it is larger than the sum of its proper divisors (15589025).

77945095 is a wasteful number, since it uses less digits than its factorization.

77945095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15589024.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 77945095 is about 8828.6519356015. The cubic root of 77945095 is about 427.1655923621.

The spelling of 77945095 in words is "seventy-seven million, nine hundred forty-five thousand, ninety-five".