100009387 has 2 divisors, whose sum is σ = 100009388. Its totient is φ = 100009386.

The previous prime is 100009363. The next prime is 100009391. The reversal of 100009387 is 783900001.

It is a strong prime.

It is an emirp because it is prime and its reverse (783900001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100009387 is a prime.

It is not a weakly prime, because it can be changed into another prime (100009337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50004693 + 50004694.

It is an arithmetic number, because the mean of its divisors is an integer number (50004694).

Almost surely, 2^100009387 is an apocalyptic number.

100009387 is a deficient number, since it is larger than the sum of its proper divisors (1).

100009387 is an equidigital number, since it uses as much as digits as its factorization.

100009387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 100009387 is about 10000.4693389860. The cubic root of 100009387 is about 464.1734064383.

Adding to 100009387 its reverse (783900001), we get a palindrome (883909388).

The spelling of 100009387 in words is "one hundred million, nine thousand, three hundred eighty-seven".