100899793 has 2 divisors, whose sum is σ = 100899794. Its totient is φ = 100899792.

The previous prime is 100899791. The next prime is 100899803. The reversal of 100899793 is 397998001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100340289 + 559504 = 10017^2 + 748^2 .

It is a cyclic number.

It is not a de Polignac number, because 100899793 - 2¹ = 100899791 is a prime.

Together with 100899791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100899791) 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 as a sum of consecutive naturals, namely, 50449896 + 50449897.

It is an arithmetic number, because the mean of its divisors is an integer number (50449897).

Almost surely, 2^100899793 is an apocalyptic number.

It is an amenable number.

100899793 is a deficient number, since it is larger than the sum of its proper divisors (1).

100899793 is an equidigital number, since it uses as much as digits as its factorization.

100899793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 100899793 is about 10044.8888993358. Note that the first 4 decimals coincide. The cubic root of 100899793 is about 465.5468849815.

The spelling of 100899793 in words is "one hundred million, eight hundred ninety-nine thousand, seven hundred ninety-three".