100393499 has 4 divisors (see below), whose sum is σ = 101331864. Its totient is φ = 99455136.

The previous prime is 100393481. The next prime is 100393523. The reversal of 100393499 is 994393001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994393001 = 7 ⋅142056143.

It is a cyclic number.

It is not a de Polignac number, because 100393499 - 2⁸ = 100393243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100393439) 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 3 ways as a sum of consecutive naturals, for example, 469022 + ... + 469235.

It is an arithmetic number, because the mean of its divisors is an integer number (25332966).

Almost surely, 2^100393499 is an apocalyptic number.

100393499 is a deficient number, since it is larger than the sum of its proper divisors (938365).

100393499 is an equidigital number, since it uses as much as digits as its factorization.

100393499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938364.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 100393499 is about 10019.6556328050. The cubic root of 100393499 is about 464.7669067235.

The spelling of 100393499 in words is "one hundred million, three hundred ninety-three thousand, four hundred ninety-nine".