16634039 has 4 divisors (see below), whose sum is σ = 16643640. Its totient is φ = 16624440.

The previous prime is 16634027. The next prime is 16634071. The reversal of 16634039 is 93043661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16634039 - 2⁸ = 16633783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16633996 and 16634014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16634339) 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, 1397 + ... + 5934.

It is an arithmetic number, because the mean of its divisors is an integer number (4160910).

Almost surely, 2^16634039 is an apocalyptic number.

16634039 is a deficient number, since it is larger than the sum of its proper divisors (9601).

16634039 is an equidigital number, since it uses as much as digits as its factorization.

16634039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 16634039 is about 4078.4848902503. The cubic root of 16634039 is about 255.2696826498.

The spelling of 16634039 in words is "sixteen million, six hundred thirty-four thousand, thirty-nine".