77674068 has 36 divisors (see below), whose sum is σ = 197788500. Its totient is φ = 25700736.

The previous prime is 77674067. The next prime is 77674081. The reversal of 77674068 is 86047677.

It can be written as a sum of positive squares in 2 ways, for example, as 18507204 + 59166864 = 4302^2 + 7692^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77674067) 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 11 ways as a sum of consecutive naturals, for example, 2943 + ... + 12806.

It is an arithmetic number, because the mean of its divisors is an integer number (5494125).

Almost surely, 2^77674068 is an apocalyptic number.

It is an amenable number.

77674068 is an abundant number, since it is smaller than the sum of its proper divisors (120114432).

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

77674068 is a wasteful number, since it uses less digits than its factorization.

77674068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896 (or 15891 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 77674068 is about 8813.2892838032. The cubic root of 77674068 is about 426.6699107284.

The spelling of 77674068 in words is "seventy-seven million, six hundred seventy-four thousand, sixty-eight".