104891311 has 12 divisors (see below), whose sum is σ = 122279592. Its totient is φ = 89713008.

The previous prime is 104891299. The next prime is 104891327. The reversal of 104891311 is 113198401.

It is a de Polignac number, because none of the positive numbers 2^k-104891311 is a prime.

It is a super-2 number, since 2×104891311² = 22004374246597442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104891311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104891341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23581 + ... + 27673.

It is an arithmetic number, because the mean of its divisors is an integer number (10189966).

Almost surely, 2^104891311 is an apocalyptic number.

104891311 is a deficient number, since it is larger than the sum of its proper divisors (17388281).

104891311 is an equidigital number, since it uses as much as digits as its factorization.

104891311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630 (or 4623 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 104891311 is about 10241.6459126451. The cubic root of 104891311 is about 471.6065604227.

The spelling of 104891311 in words is "one hundred four million, eight hundred ninety-one thousand, three hundred eleven".