100402887 has 8 divisors (see below), whose sum is σ = 144168304. Its totient is φ = 61786368.

The previous prime is 100402879. The next prime is 100402903. The reversal of 100402887 is 788204001.

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

It is not a de Polignac number, because 100402887 - 2³ = 100402879 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 (100402817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287178 + ... + 1287255.

It is an arithmetic number, because the mean of its divisors is an integer number (18021038).

Almost surely, 2^100402887 is an apocalyptic number.

100402887 is a deficient number, since it is larger than the sum of its proper divisors (43765417).

100402887 is a wasteful number, since it uses less digits than its factorization.

100402887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574449.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 100402887 is about 10020.1241010279. The cubic root of 100402887 is about 464.7813933711.

Adding to 100402887 its reverse (788204001), we get a palindrome (888606888).

The spelling of 100402887 in words is "one hundred million, four hundred two thousand, eight hundred eighty-seven".