100217864 has 16 divisors (see below), whose sum is σ = 192279120. Its totient is φ = 48943440.

The previous prime is 100217861. The next prime is 100217903. The reversal of 100217864 is 468712001.

It is not an unprimeable number, because it can be changed into a prime (100217861) 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, 145322 + ... + 146009.

It is an arithmetic number, because the mean of its divisors is an integer number (12017445).

Almost surely, 2^100217864 is an apocalyptic number.

It is an amenable number.

100217864 is a deficient number, since it is larger than the sum of its proper divisors (92061256).

100217864 is a wasteful number, since it uses less digits than its factorization.

100217864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291380 (or 291376 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 100217864 is about 10010.8872733639. The cubic root of 100217864 is about 464.4957172362.

Adding to 100217864 its reverse (468712001), we get a palindrome (568929865).

The spelling of 100217864 in words is "one hundred million, two hundred seventeen thousand, eight hundred sixty-four".