77111413 has 4 divisors (see below), whose sum is σ = 77511148. Its totient is φ = 76711680.

The previous prime is 77111357. The next prime is 77111417. The reversal of 77111413 is 31411177.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31411177 = 7 ⋅4487311.

It can be written as a sum of positive squares in 2 ways, for example, as 40424164 + 36687249 = 6358^2 + 6057^2 .

It is a cyclic number.

It is not a de Polignac number, because 77111413 - 2¹⁷ = 76980341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77111417) 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 3 ways as a sum of consecutive naturals, for example, 199578 + ... + 199963.

It is an arithmetic number, because the mean of its divisors is an integer number (19377787).

Almost surely, 2^77111413 is an apocalyptic number.

It is an amenable number.

77111413 is a deficient number, since it is larger than the sum of its proper divisors (399735).

77111413 is a wasteful number, since it uses less digits than its factorization.

77111413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399734.

The product of its digits is 588, while the sum is 25.

The square root of 77111413 is about 8781.3104375144. The cubic root of 77111413 is about 425.6371766530.

The spelling of 77111413 in words is "seventy-seven million, one hundred eleven thousand, four hundred thirteen".