104437639 has 2 divisors, whose sum is σ = 104437640. Its totient is φ = 104437638.

The previous prime is 104437609. The next prime is 104437649. The reversal of 104437639 is 936734401.

It is a strong prime.

It is an emirp because it is prime and its reverse (936734401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104437639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104437598 and 104437607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104437609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52218819 + 52218820.

It is an arithmetic number, because the mean of its divisors is an integer number (52218820).

Almost surely, 2^104437639 is an apocalyptic number.

104437639 is a deficient number, since it is larger than the sum of its proper divisors (1).

104437639 is an equidigital number, since it uses as much as digits as its factorization.

104437639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 104437639 is about 10219.4735187288. The cubic root of 104437639 is about 470.9256527423.

It can be divided in two parts, 1044 and 37639, that added together give a palindrome (38683).

The spelling of 104437639 in words is "one hundred four million, four hundred thirty-seven thousand, six hundred thirty-nine".