104644287 has 12 divisors (see below), whose sum is σ = 164894184. Its totient is φ = 63420720.

The previous prime is 104644249. The next prime is 104644357. The reversal of 104644287 is 782446401.

104644287 is a `hidden beast` number, since 1 + 0 + 4 + 644 + 2 + 8 + 7 = 666.

It is not a de Polignac number, because 104644287 - 2⁶ = 104644223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104644217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528408 + ... + 528605.

It is an arithmetic number, because the mean of its divisors is an integer number (13741182).

Almost surely, 2^104644287 is an apocalyptic number.

104644287 is a deficient number, since it is larger than the sum of its proper divisors (60249897).

104644287 is a wasteful number, since it uses less digits than its factorization.

104644287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057030 (or 1057027 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 104644287 is about 10229.5790235962. The cubic root of 104644287 is about 471.2360508269.

It can be divided in two parts, 1046442 and 87, that added together give a square (1046529 = 1023²).

The spelling of 104644287 in words is "one hundred four million, six hundred forty-four thousand, two hundred eighty-seven".