100998247 has 4 divisors (see below), whose sum is σ = 115426576. Its totient is φ = 86569920.

The previous prime is 100998203. The next prime is 100998299. The reversal of 100998247 is 742899001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742899001 = 13 ⋅57146077.

It is a cyclic number.

It is not a de Polignac number, because 100998247 - 2⁷ = 100998119 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 (100998647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7214154 + ... + 7214167.

It is an arithmetic number, because the mean of its divisors is an integer number (28856644).

Almost surely, 2^100998247 is an apocalyptic number.

100998247 is a deficient number, since it is larger than the sum of its proper divisors (14428329).

100998247 is an equidigital number, since it uses as much as digits as its factorization.

100998247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14428328.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 100998247 is about 10049.7884057327. The cubic root of 100998247 is about 465.6982564619.

The spelling of 100998247 in words is "one hundred million, nine hundred ninety-eight thousand, two hundred forty-seven".