20147716 has 12 divisors (see below), whose sum is σ = 35290332. Its totient is φ = 10064768.

The previous prime is 20147713. The next prime is 20147717. The reversal of 20147716 is 61774102.

It can be written as a sum of positive squares in 2 ways, for example, as 10562500 + 9585216 = 3250^2 + 3096^2 .

It is not an unprimeable number, because it can be changed into a prime (20147711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6336 + ... + 8968.

It is an arithmetic number, because the mean of its divisors is an integer number (2940861).

Almost surely, 2^20147716 is an apocalyptic number.

It is an amenable number.

20147716 is a deficient number, since it is larger than the sum of its proper divisors (15142616).

20147716 is a wasteful number, since it uses less digits than its factorization.

20147716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550 (or 4548 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 20147716 is about 4488.6207235631. The cubic root of 20147716 is about 272.1083946584.

It can be divided in two parts, 2014 and 7716, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 20147716 in words is "twenty million, one hundred forty-seven thousand, seven hundred sixteen".