104166779 has 4 divisors (see below), whose sum is σ = 104189520. Its totient is φ = 104144040.

The previous prime is 104166761. The next prime is 104166781. The reversal of 104166779 is 977661401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104166779 - 2¹² = 104162683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104166679) 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, 1832 + ... + 14549.

It is an arithmetic number, because the mean of its divisors is an integer number (26047380).

Almost surely, 2^104166779 is an apocalyptic number.

104166779 is a deficient number, since it is larger than the sum of its proper divisors (22741).

104166779 is an equidigital number, since it uses as much as digits as its factorization.

104166779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22740.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 104166779 is about 10206.2127647820. The cubic root of 104166779 is about 470.5181835760.

The spelling of 104166779 in words is "one hundred four million, one hundred sixty-six thousand, seven hundred seventy-nine".