100444879 has 4 divisors (see below), whose sum is σ = 101420176. Its totient is φ = 99469584.

The previous prime is 100444873. The next prime is 100444901. The reversal of 100444879 is 978444001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978444001 = 2267 ⋅431603.

It is a cyclic number.

It is not a de Polignac number, because 100444879 - 2³ = 100444871 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 (100444871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487494 + ... + 487699.

It is an arithmetic number, because the mean of its divisors is an integer number (25355044).

Almost surely, 2^100444879 is an apocalyptic number.

100444879 is a deficient number, since it is larger than the sum of its proper divisors (975297).

100444879 is an equidigital number, since it uses as much as digits as its factorization.

100444879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975296.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 100444879 is about 10022.2192652127. The cubic root of 100444879 is about 464.8461802863.

The spelling of 100444879 in words is "one hundred million, four hundred forty-four thousand, eight hundred seventy-nine".