202000087 has 2 divisors, whose sum is σ = 202000088. Its totient is φ = 202000086.

The previous prime is 202000081. The next prime is 202000091. The reversal of 202000087 is 780000202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202000087 - 2³ = 202000079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202000081) 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 as a sum of consecutive naturals, namely, 101000043 + 101000044.

It is an arithmetic number, because the mean of its divisors is an integer number (101000044).

Almost surely, 2^202000087 is an apocalyptic number.

202000087 is a deficient number, since it is larger than the sum of its proper divisors (1).

202000087 is an equidigital number, since it uses as much as digits as its factorization.

202000087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 202000087 is about 14212.6734642009. The cubic root of 202000087 is about 586.7465150801.

Adding to 202000087 its reverse (780000202), we get a palindrome (982000289).

The spelling of 202000087 in words is "two hundred two million, eighty-seven", and thus it is an aban number.