100787663 has 4 divisors (see below), whose sum is σ = 101766288. Its totient is φ = 99809040.

The previous prime is 100787653. The next prime is 100787689. The reversal of 100787663 is 366787001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100787663 - 2¹² = 100783567 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 (100787653) 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, 489158 + ... + 489363.

It is an arithmetic number, because the mean of its divisors is an integer number (25441572).

Almost surely, 2^100787663 is an apocalyptic number.

100787663 is a deficient number, since it is larger than the sum of its proper divisors (978625).

100787663 is an equidigital number, since it uses as much as digits as its factorization.

100787663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978624.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 100787663 is about 10039.3059023022. The cubic root of 100787663 is about 465.3743668825.

The spelling of 100787663 in words is "one hundred million, seven hundred eighty-seven thousand, six hundred sixty-three".