100997863 has 8 divisors (see below), whose sum is σ = 106697520. Its totient is φ = 95336640.

The previous prime is 100997857. The next prime is 100997891. The reversal of 100997863 is 368799001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100997863 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 (100997843) 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 in 7 ways as a sum of consecutive naturals, for example, 4120 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (13337190).

Almost surely, 2^100997863 is an apocalyptic number.

100997863 is a deficient number, since it is larger than the sum of its proper divisors (5699657).

100997863 is a wasteful number, since it uses less digits than its factorization.

100997863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19217.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 100997863 is about 10049.7693008347. The cubic root of 100997863 is about 465.6976662591.

The spelling of 100997863 in words is "one hundred million, nine hundred ninety-seven thousand, eight hundred sixty-three".