104966639 has 4 divisors (see below), whose sum is σ = 104987256. Its totient is φ = 104946024.

The previous prime is 104966629. The next prime is 104966647. The reversal of 104966639 is 936669401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104966639 - 2⁸ = 104966383 is a prime.

It is a super-2 number, since 2×104966639² = 22035990605912642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104966639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104966629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452 + ... + 14894.

It is an arithmetic number, because the mean of its divisors is an integer number (26246814).

Almost surely, 2^104966639 is an apocalyptic number.

104966639 is a deficient number, since it is larger than the sum of its proper divisors (20617).

104966639 is an equidigital number, since it uses as much as digits as its factorization.

104966639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 104966639 is about 10245.3227865207. The cubic root of 104966639 is about 471.7194286157.

The spelling of 104966639 in words is "one hundred four million, nine hundred sixty-six thousand, six hundred thirty-nine".