202670987 has 2 divisors, whose sum is σ = 202670988. Its totient is φ = 202670986.

The previous prime is 202670983. The next prime is 202671011. The reversal of 202670987 is 789076202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202670987 - 2² = 202670983 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202670981) 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 as a sum of consecutive naturals, namely, 101335493 + 101335494.

It is an arithmetic number, because the mean of its divisors is an integer number (101335494).

Almost surely, 2^202670987 is an apocalyptic number.

202670987 is a deficient number, since it is larger than the sum of its proper divisors (1).

202670987 is an equidigital number, since it uses as much as digits as its factorization.

202670987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 202670987 is about 14236.2560738419. The cubic root of 202670987 is about 587.3953815222.

The spelling of 202670987 in words is "two hundred two million, six hundred seventy thousand, nine hundred eighty-seven".