77874367 has 4 divisors (see below), whose sum is σ = 80559720. Its totient is φ = 75189016.

The previous prime is 77874361. The next prime is 77874371. The reversal of 77874367 is 76347877.

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 77874367 - 2³ = 77874359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77874367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77874361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1342633 + ... + 1342690.

It is an arithmetic number, because the mean of its divisors is an integer number (20139930).

Almost surely, 2^77874367 is an apocalyptic number.

77874367 is a deficient number, since it is larger than the sum of its proper divisors (2685353).

77874367 is a wasteful number, since it uses less digits than its factorization.

77874367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685352.

The product of its digits is 1382976, while the sum is 49.

The square root of 77874367 is about 8824.6454319706. The cubic root of 77874367 is about 427.0363487751.

The spelling of 77874367 in words is "seventy-seven million, eight hundred seventy-four thousand, three hundred sixty-seven".