100444779 has 12 divisors (see below), whose sum is σ = 150460856. Its totient is φ = 66963024.

The previous prime is 100444763. The next prime is 100444801. The reversal of 100444779 is 977444001.

It is not a de Polignac number, because 100444779 - 2⁴ = 100444763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100444579) 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 11 ways as a sum of consecutive naturals, for example, 206434 + ... + 206919.

Almost surely, 2^100444779 is an apocalyptic number.

100444779 is a deficient number, since it is larger than the sum of its proper divisors (50016077).

100444779 is an frugal number, since it uses more digits than its factorization.

100444779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413368 (or 413356 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 100444779 is about 10022.2142762964. The cubic root of 100444779 is about 464.8460260238.

The spelling of 100444779 in words is "one hundred million, four hundred forty-four thousand, seven hundred seventy-nine".