77868714 has 64 divisors (see below), whose sum is σ = 200466432. Its totient is φ = 19569600.

The previous prime is 77868697. The next prime is 77868719. The reversal of 77868714 is 41786877.

It is not an unprimeable number, because it can be changed into a prime (77868719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11604 + ... + 17040.

It is an arithmetic number, because the mean of its divisors is an integer number (3132288).

Almost surely, 2^77868714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77868714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100233216).

77868714 is an abundant number, since it is smaller than the sum of its proper divisors (122597718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77868714 is a wasteful number, since it uses less digits than its factorization.

77868714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its digits is 526848, while the sum is 48.

The square root of 77868714 is about 8824.3251300029. The cubic root of 77868714 is about 427.0260154866.

The spelling of 77868714 in words is "seventy-seven million, eight hundred sixty-eight thousand, seven hundred fourteen".