104780771 has 4 divisors (see below), whose sum is σ = 105000000. Its totient is φ = 104561544.

The previous prime is 104780761. The next prime is 104780773. The reversal of 104780771 is 177087401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177087401 = 1987 ⋅89123.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104780771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104780773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108896 + ... + 109853.

It is an arithmetic number, because the mean of its divisors is an integer number (26250000).

Almost surely, 2^104780771 is an apocalyptic number.

104780771 is a deficient number, since it is larger than the sum of its proper divisors (219229).

104780771 is an equidigital number, since it uses as much as digits as its factorization.

104780771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219228.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 104780771 is about 10236.2478965684. The cubic root of 104780771 is about 471.4408342300.

It can be divided in two parts, 1047 and 80771, that added together give a palindrome (81818).

The spelling of 104780771 in words is "one hundred four million, seven hundred eighty thousand, seven hundred seventy-one".