104194487 has 2 divisors, whose sum is σ = 104194488. Its totient is φ = 104194486.

The previous prime is 104194481. The next prime is 104194501. The reversal of 104194487 is 784491401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104194487 - 2⁴ = 104194471 is a prime.

It is a super-2 number, since 2×104194487² = 21712982242386338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104194487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104194481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52097243 + 52097244.

It is an arithmetic number, because the mean of its divisors is an integer number (52097244).

Almost surely, 2^104194487 is an apocalyptic number.

104194487 is a deficient number, since it is larger than the sum of its proper divisors (1).

104194487 is an equidigital number, since it uses as much as digits as its factorization.

104194487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 104194487 is about 10207.5700830315. The cubic root of 104194487 is about 470.5598986096.

The spelling of 104194487 in words is "one hundred four million, one hundred ninety-four thousand, four hundred eighty-seven".