104644387 has 2 divisors, whose sum is σ = 104644388. Its totient is φ = 104644386.

The previous prime is 104644373. The next prime is 104644417. The reversal of 104644387 is 783446401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104644387 - 2¹⁹ = 104120099 is a prime.

It is not a weakly prime, because it can be changed into another prime (104644357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52322193 + 52322194.

It is an arithmetic number, because the mean of its divisors is an integer number (52322194).

Almost surely, 2^104644387 is an apocalyptic number.

104644387 is a deficient number, since it is larger than the sum of its proper divisors (1).

104644387 is an equidigital number, since it uses as much as digits as its factorization.

104644387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 104644387 is about 10229.5839113817. The cubic root of 104644387 is about 471.2362009342.

The spelling of 104644387 in words is "one hundred four million, six hundred forty-four thousand, three hundred eighty-seven".