100904865 has 8 divisors (see below), whose sum is σ = 161447808. Its totient is φ = 53815920.

The previous prime is 100904863. The next prime is 100904879. The reversal of 100904865 is 568409001.

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

It is not a de Polignac number, because 100904865 - 2¹ = 100904863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100904861) 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, 3363481 + ... + 3363510.

It is an arithmetic number, because the mean of its divisors is an integer number (20180976).

Almost surely, 2^100904865 is an apocalyptic number.

100904865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100904865 is a deficient number, since it is larger than the sum of its proper divisors (60542943).

100904865 is an equidigital number, since it uses as much as digits as its factorization.

100904865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726999.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 100904865 is about 10045.1413628679. The cubic root of 100904865 is about 465.5546855071.

The spelling of 100904865 in words is "one hundred million, nine hundred four thousand, eight hundred sixty-five".