16768539 has 20 divisors (see below), whose sum is σ = 25182520. Its totient is φ = 11119680.

The previous prime is 16768537. The next prime is 16768561. The reversal of 16768539 is 93586761.

It is a happy number.

It is not a de Polignac number, because 16768539 - 2¹ = 16768537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16768494 and 16768503.

It is not an unprimeable number, because it can be changed into a prime (16768537) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19092 + ... + 19950.

It is an arithmetic number, because the mean of its divisors is an integer number (1259126).

Almost surely, 2^16768539 is an apocalyptic number.

16768539 is a deficient number, since it is larger than the sum of its proper divisors (8413981).

16768539 is an equidigital number, since it uses as much as digits as its factorization.

16768539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112 (or 1103 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 16768539 is about 4094.9406589107. The cubic root of 16768539 is about 255.9558588851.

The spelling of 16768539 in words is "sixteen million, seven hundred sixty-eight thousand, five hundred thirty-nine".