104639011 has 4 divisors (see below), whose sum is σ = 107191224. Its totient is φ = 102086800.

The previous prime is 104639009. The next prime is 104639069. The reversal of 104639011 is 110936401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110936401 = 881 ⋅125921.

It is a cyclic number.

It is not a de Polignac number, because 104639011 - 2¹ = 104639009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104639411) 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, 1276045 + ... + 1276126.

It is an arithmetic number, because the mean of its divisors is an integer number (26797806).

Almost surely, 2^104639011 is an apocalyptic number.

104639011 is a deficient number, since it is larger than the sum of its proper divisors (2552213).

104639011 is an equidigital number, since it uses as much as digits as its factorization.

104639011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552212.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 104639011 is about 10229.3211407209. The cubic root of 104639011 is about 471.2281310342.

It can be divided in two parts, 1046390 and 11, that added together give a palindrome (1046401).

The spelling of 104639011 in words is "one hundred four million, six hundred thirty-nine thousand, eleven".