104669991 has 6 divisors (see below), whose sum is σ = 151190000. Its totient is φ = 69779988.

The previous prime is 104669989. The next prime is 104670001. The reversal of 104669991 is 199966401.

104669991 is a `hidden beast` number, since 10 + 466 + 99 + 91 = 666.

It is not a de Polignac number, because 104669991 - 2¹ = 104669989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104669911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5814991 + ... + 5815008.

Almost surely, 2^104669991 is an apocalyptic number.

104669991 is a deficient number, since it is larger than the sum of its proper divisors (46520009).

104669991 is a wasteful number, since it uses less digits than its factorization.

104669991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630005 (or 11630002 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 104669991 is about 10230.8353031412. The cubic root of 104669991 is about 471.2746312412.

The spelling of 104669991 in words is "one hundred four million, six hundred sixty-nine thousand, nine hundred ninety-one".