16104639 has 8 divisors (see below), whose sum is σ = 21714480. Its totient is φ = 10615616.

The previous prime is 16104629. The next prime is 16104643. The reversal of 16104639 is 93640161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16104639 - 2⁵ = 16104607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16104629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29892 + ... + 30425.

It is an arithmetic number, because the mean of its divisors is an integer number (2714310).

Almost surely, 2^16104639 is an apocalyptic number.

16104639 is a deficient number, since it is larger than the sum of its proper divisors (5609841).

16104639 is an equidigital number, since it uses as much as digits as its factorization.

16104639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60409.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 16104639 is about 4013.0585592538. The cubic root of 16104639 is about 252.5323371322.

The spelling of 16104639 in words is "sixteen million, one hundred four thousand, six hundred thirty-nine".