77922977 has 8 divisors (see below), whose sum is σ = 85579200. Its totient is φ = 70362160.

The previous prime is 77922967. The next prime is 77922991.

77922977 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 77922977 - 2⁴ = 77922961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77922907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22133 + ... + 25410.

It is an arithmetic number, because the mean of its divisors is an integer number (10697400).

Almost surely, 2^77922977 is an apocalyptic number.

It is an amenable number.

77922977 is a deficient number, since it is larger than the sum of its proper divisors (7656223).

77922977 is a wasteful number, since it uses less digits than its factorization.

77922977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47703.

The product of its digits is 777924, while the sum is 50.

The square root of 77922977 is about 8827.3992206085. The cubic root of 77922977 is about 427.1251838225.

The spelling of 77922977 in words is "seventy-seven million, nine hundred twenty-two thousand, nine hundred seventy-seven".