100447799 has 2 divisors, whose sum is σ = 100447800. Its totient is φ = 100447798.

The previous prime is 100447769. The next prime is 100447801. The reversal of 100447799 is 997744001.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (997744001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100447799 is a prime.

Together with 100447801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100447759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50223899 + 50223900.

It is an arithmetic number, because the mean of its divisors is an integer number (50223900).

Almost surely, 2^100447799 is an apocalyptic number.

100447799 is a deficient number, since it is larger than the sum of its proper divisors (1).

100447799 is an equidigital number, since it uses as much as digits as its factorization.

100447799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 100447799 is about 10022.3649404719. The cubic root of 100447799 is about 464.8506847061.

The spelling of 100447799 in words is "one hundred million, four hundred forty-seven thousand, seven hundred ninety-nine".