100204993 has 8 divisors (see below), whose sum is σ = 120547520. Its totient is φ = 81369360.

The previous prime is 100204981. The next prime is 100205023. The reversal of 100204993 is 399402001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100204993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100204963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376578 + ... + 376843.

It is an arithmetic number, because the mean of its divisors is an integer number (15068440).

Almost surely, 2^100204993 is an apocalyptic number.

It is an amenable number.

100204993 is a deficient number, since it is larger than the sum of its proper divisors (20342527).

100204993 is an equidigital number, since it uses as much as digits as its factorization.

100204993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753447.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 100204993 is about 10010.2444026108. The cubic root of 100204993 is about 464.4758312927.

Adding to 100204993 its reverse (399402001), we get a palindrome (499606994).

The spelling of 100204993 in words is "one hundred million, two hundred four thousand, nine hundred ninety-three".