104421287 has 2 divisors, whose sum is σ = 104421288. Its totient is φ = 104421286.

The previous prime is 104421281. The next prime is 104421313. The reversal of 104421287 is 782124401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104421287 - 2¹⁰ = 104420263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104421281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52210643 + 52210644.

It is an arithmetic number, because the mean of its divisors is an integer number (52210644).

Almost surely, 2^104421287 is an apocalyptic number.

104421287 is a deficient number, since it is larger than the sum of its proper divisors (1).

104421287 is an equidigital number, since it uses as much as digits as its factorization.

104421287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 104421287 is about 10218.6734461964. The cubic root of 104421287 is about 470.9010735508.

Adding to 104421287 its reverse (782124401), we get a palindrome (886545688).

The spelling of 104421287 in words is "one hundred four million, four hundred twenty-one thousand, two hundred eighty-seven".