20000716 has 12 divisors (see below), whose sum is σ = 35662032. Its totient is φ = 9811568.

The previous prime is 20000713. The next prime is 20000723. The reversal of 20000716 is 61700002.

It is a self number, because there is not a number n which added to its sum of digits gives 20000716.

It is not an unprimeable number, because it can be changed into a prime (20000713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46960 + ... + 47383.

It is an arithmetic number, because the mean of its divisors is an integer number (2971836).

Almost surely, 2^20000716 is an apocalyptic number.

20000716 is the 2391-st centered heptagonal number.

It is an amenable number.

20000716 is a deficient number, since it is larger than the sum of its proper divisors (15661316).

20000716 is a wasteful number, since it uses less digits than its factorization.

20000716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94400 (or 94398 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 20000716 is about 4472.2160055167. The cubic root of 20000716 is about 271.4450008259.

Adding to 20000716 its reverse (61700002), we get a palindrome (81700718).

The spelling of 20000716 in words is "twenty million, seven hundred sixteen", and thus it is an aban number.