77405896 has 16 divisors (see below), whose sum is σ = 153673740. Its totient is φ = 36426240.

The previous prime is 77405873. The next prime is 77405899. The reversal of 77405896 is 69850477.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67076100 + 10329796 = 8190^2 + 3214^2 .

It is not an unprimeable number, because it can be changed into a prime (77405899) 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, 284445 + ... + 284716.

Almost surely, 2^77405896 is an apocalyptic number.

It is an amenable number.

77405896 is a deficient number, since it is larger than the sum of its proper divisors (76267844).

77405896 is a wasteful number, since it uses less digits than its factorization.

77405896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569184 (or 569180 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 77405896 is about 8798.0620593401. The cubic root of 77405896 is about 426.1783144126.

The spelling of 77405896 in words is "seventy-seven million, four hundred five thousand, eight hundred ninety-six".