100804091 has 4 divisors (see below), whose sum is σ = 101597952. Its totient is φ = 100010232.

The previous prime is 100804073. The next prime is 100804103. The reversal of 100804091 is 190408001.

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 100804091 - 2¹⁰ = 100803067 is a prime.

It is a super-2 number, since 2×100804091² = 20322929524672562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100804001) 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 3 ways as a sum of consecutive naturals, for example, 396740 + ... + 396993.

It is an arithmetic number, because the mean of its divisors is an integer number (25399488).

Almost surely, 2^100804091 is an apocalyptic number.

100804091 is a deficient number, since it is larger than the sum of its proper divisors (793861).

100804091 is an equidigital number, since it uses as much as digits as its factorization.

100804091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793860.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 100804091 is about 10040.1240530185. The cubic root of 100804091 is about 465.3996502506.

The spelling of 100804091 in words is "one hundred million, eight hundred four thousand, ninety-one".