77788041 has 4 divisors (see below), whose sum is σ = 103717392. Its totient is φ = 51858692.

The previous prime is 77788027. The next prime is 77788043. The reversal of 77788041 is 14088777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14088777 = 3 ⋅4696259.

It is a cyclic number.

It is not a de Polignac number, because 77788041 - 2²³ = 69399433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77787984 and 77788002.

It is not an unprimeable number, because it can be changed into a prime (77788043) 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, 12964671 + ... + 12964676.

It is an arithmetic number, because the mean of its divisors is an integer number (25929348).

Almost surely, 2^77788041 is an apocalyptic number.

It is an amenable number.

77788041 is a deficient number, since it is larger than the sum of its proper divisors (25929351).

77788041 is a wasteful number, since it uses less digits than its factorization.

77788041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25929350.

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 77788041 is about 8819.7528876948. The cubic root of 77788041 is about 426.8784963632.

The spelling of 77788041 in words is "seventy-seven million, seven hundred eighty-eight thousand, forty-one".