77694606 has 64 divisors (see below), whose sum is σ = 189907200. Its totient is φ = 23349600.

The previous prime is 77694577. The next prime is 77694613. The reversal of 77694606 is 60649677.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 82096 + ... + 83036.

It is an arithmetic number, because the mean of its divisors is an integer number (2967300).

Almost surely, 2^77694606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77694606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94953600).

77694606 is an abundant number, since it is smaller than the sum of its proper divisors (112212594).

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

77694606 is a wasteful number, since it uses less digits than its factorization.

77694606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 77694606 is about 8814.4543790299. The cubic root of 77694606 is about 426.7075130437.

The spelling of 77694606 in words is "seventy-seven million, six hundred ninety-four thousand, six hundred six".