104487591 has 16 divisors (see below), whose sum is σ = 151048800. Its totient is φ = 63864960.

The previous prime is 104487589. The next prime is 104487611. The reversal of 104487591 is 195784401.

It is not a de Polignac number, because 104487591 - 2¹ = 104487589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104487511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3180 + ... + 14801.

It is an arithmetic number, because the mean of its divisors is an integer number (9440550).

Almost surely, 2^104487591 is an apocalyptic number.

104487591 is a deficient number, since it is larger than the sum of its proper divisors (46561209).

104487591 is a wasteful number, since it uses less digits than its factorization.

104487591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18146.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 104487591 is about 10221.9171880817. The cubic root of 104487591 is about 471.0007212362. Note that the first 3 decimals are identical.

The spelling of 104487591 in words is "one hundred four million, four hundred eighty-seven thousand, five hundred ninety-one".