104405665 has 48 divisors (see below), whose sum is σ = 163382400. Its totient is φ = 62539776.

The previous prime is 104405663. The next prime is 104405681. The reversal of 104405665 is 566504401.

It is not a de Polignac number, because 104405665 - 2¹ = 104405663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104405663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111921 + ... + 112849.

It is an arithmetic number, because the mean of its divisors is an integer number (3403800).

Almost surely, 2^104405665 is an apocalyptic number.

It is an amenable number.

104405665 is a deficient number, since it is larger than the sum of its proper divisors (58976735).

104405665 is a wasteful number, since it uses less digits than its factorization.

104405665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 104405665 is about 10217.9090326740. The cubic root of 104405665 is about 470.8775892477.

It can be divided in two parts, 104 and 405665, that added together give a square (405769 = 637²).

The spelling of 104405665 in words is "one hundred four million, four hundred five thousand, six hundred sixty-five".