100206399 has 8 divisors (see below), whose sum is σ = 140640640. Its totient is φ = 63288216.

The previous prime is 100206389. The next prime is 100206401. The reversal of 100206399 is 993602001.

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

It is not a de Polignac number, because 100206399 - 2⁹ = 100205887 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 (100206329) 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 7 ways as a sum of consecutive naturals, for example, 878947 + ... + 879060.

It is an arithmetic number, because the mean of its divisors is an integer number (17580080).

Almost surely, 2^100206399 is an apocalyptic number.

100206399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

100206399 is a deficient number, since it is larger than the sum of its proper divisors (40434241).

100206399 is a wasteful number, since it uses less digits than its factorization.

100206399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758029.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 100206399 is about 10010.3146304200. The cubic root of 100206399 is about 464.4780036727.

The spelling of 100206399 in words is "one hundred million, two hundred six thousand, three hundred ninety-nine".