102002987 has 2 divisors, whose sum is σ = 102002988. Its totient is φ = 102002986.

The previous prime is 102002981. The next prime is 102003037. The reversal of 102002987 is 789200201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102002987 - 2²⁴ = 85225771 is a prime.

It is not a weakly prime, because it can be changed into another prime (102002981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51001493 + 51001494.

It is an arithmetic number, because the mean of its divisors is an integer number (51001494).

Almost surely, 2^102002987 is an apocalyptic number.

102002987 is a deficient number, since it is larger than the sum of its proper divisors (1).

102002987 is an equidigital number, since it uses as much as digits as its factorization.

102002987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 102002987 is about 10099.6528158150. The cubic root of 102002987 is about 467.2374336557.

The spelling of 102002987 in words is "one hundred two million, two thousand, nine hundred eighty-seven".