104821637 has 2 divisors, whose sum is σ = 104821638. Its totient is φ = 104821636.

The previous prime is 104821627. The next prime is 104821663. The reversal of 104821637 is 736128401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54893281 + 49928356 = 7409^2 + 7066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104821637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104821627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52410818 + 52410819.

It is an arithmetic number, because the mean of its divisors is an integer number (52410819).

Almost surely, 2^104821637 is an apocalyptic number.

It is an amenable number.

104821637 is a deficient number, since it is larger than the sum of its proper divisors (1).

104821637 is an equidigital number, since it uses as much as digits as its factorization.

104821637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 104821637 is about 10238.2438435505. The cubic root of 104821637 is about 471.5021158208.

The spelling of 104821637 in words is "one hundred four million, eight hundred twenty-one thousand, six hundred thirty-seven".