100398247 has 4 divisors (see below), whose sum is σ = 100457656. Its totient is φ = 100338840.

The previous prime is 100398187. The next prime is 100398257. The reversal of 100398247 is 742893001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742893001 = 401 ⋅1852601.

It is a cyclic number.

It is not a de Polignac number, because 100398247 - 2¹¹ = 100396199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100398257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27093 + ... + 30574.

It is an arithmetic number, because the mean of its divisors is an integer number (25114414).

Almost surely, 2^100398247 is an apocalyptic number.

100398247 is a deficient number, since it is larger than the sum of its proper divisors (59409).

100398247 is an equidigital number, since it uses as much as digits as its factorization.

100398247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59408.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 100398247 is about 10019.8925642943. The cubic root of 100398247 is about 464.7742334877.

The spelling of 100398247 in words is "one hundred million, three hundred ninety-eight thousand, two hundred forty-seven".