100989579 has 8 divisors (see below), whose sum is σ = 141739840. Its totient is φ = 63782856.

The previous prime is 100989547. The next prime is 100989589. The reversal of 100989579 is 975989001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100989579 - 2⁵ = 100989547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100989509) 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 7 ways as a sum of consecutive naturals, for example, 885817 + ... + 885930.

It is an arithmetic number, because the mean of its divisors is an integer number (17717480).

Almost surely, 2^100989579 is an apocalyptic number.

100989579 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

100989579 is a deficient number, since it is larger than the sum of its proper divisors (40750261).

100989579 is a wasteful number, since it uses less digits than its factorization.

100989579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771769.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 100989579 is about 10049.3571436187. The cubic root of 100989579 is about 465.6849334981.

The spelling of 100989579 in words is "one hundred million, nine hundred eighty-nine thousand, five hundred seventy-nine".