20200084687 has 2 divisors, whose sum is σ = 20200084688. Its totient is φ = 20200084686.

The previous prime is 20200084657. The next prime is 20200084691. The reversal of 20200084687 is 78648000202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20200084687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200084657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100042343 + 10100042344.

It is an arithmetic number, because the mean of its divisors is an integer number (10100042344).

Almost surely, 2^20200084687 is an apocalyptic number.

20200084687 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200084687 is an equidigital number, since it uses as much as digits as its factorization.

20200084687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 37.

Adding to 20200084687 its reverse (78648000202), we get a palindrome (98848084889).

The spelling of 20200084687 in words is "twenty billion, two hundred million, eighty-four thousand, six hundred eighty-seven".