77704066 has 16 divisors (see below), whose sum is σ = 129859200. Its totient is φ = 34568080.

The previous prime is 77704063. The next prime is 77704069. The reversal of 77704066 is 66040777.

It is an interprime number because it is at equal distance from previous prime (77704063) and next prime (77704069).

It is not an unprimeable number, because it can be changed into a prime (77704063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36541 + ... + 38608.

It is an arithmetic number, because the mean of its divisors is an integer number (8116200).

Almost surely, 2^77704066 is an apocalyptic number.

77704066 is a deficient number, since it is larger than the sum of its proper divisors (52155134).

77704066 is a wasteful number, since it uses less digits than its factorization.

77704066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75209.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 77704066 is about 8814.9909812773. The cubic root of 77704066 is about 426.7248308021.

The spelling of 77704066 in words is "seventy-seven million, seven hundred four thousand, sixty-six".