104439971 has 4 divisors (see below), whose sum is σ = 106210200. Its totient is φ = 102669744.

The previous prime is 104439967. The next prime is 104439989. The reversal of 104439971 is 179934401.

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 104439971 - 2² = 104439967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104439901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885026 + ... + 885143.

It is an arithmetic number, because the mean of its divisors is an integer number (26552550).

Almost surely, 2^104439971 is an apocalyptic number.

104439971 is a deficient number, since it is larger than the sum of its proper divisors (1770229).

104439971 is an equidigital number, since it uses as much as digits as its factorization.

104439971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770228.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 104439971 is about 10219.5876139891. The cubic root of 104439971 is about 470.9291578338.

The spelling of 104439971 in words is "one hundred four million, four hundred thirty-nine thousand, nine hundred seventy-one".