104638836 has 12 divisors (see below), whose sum is σ = 244157312. Its totient is φ = 34879608.

The previous prime is 104638829. The next prime is 104638841. The reversal of 104638836 is 638836401.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 104638794 and 104638803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4359940 + ... + 4359963.

Almost surely, 2^104638836 is an apocalyptic number.

It is an amenable number.

104638836 is an abundant number, since it is smaller than the sum of its proper divisors (139518476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104638836 is a wasteful number, since it uses less digits than its factorization.

104638836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8719910 (or 8719908 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 104638836 is about 10229.3125868750. The cubic root of 104638836 is about 471.2278683375.

The spelling of 104638836 in words is "one hundred four million, six hundred thirty-eight thousand, eight hundred thirty-six".