84200687 has 2 divisors, whose sum is σ = 84200688. Its totient is φ = 84200686.

The previous prime is 84200671. The next prime is 84200693. The reversal of 84200687 is 78600248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84200687 - 2⁴ = 84200671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84200617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42100343 + 42100344.

It is an arithmetic number, because the mean of its divisors is an integer number (42100344).

Almost surely, 2^84200687 is an apocalyptic number.

84200687 is a deficient number, since it is larger than the sum of its proper divisors (1).

84200687 is an equidigital number, since it uses as much as digits as its factorization.

84200687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 84200687 is about 9176.0932318716. The cubic root of 84200687 is about 438.3004114251.

The spelling of 84200687 in words is "eighty-four million, two hundred thousand, six hundred eighty-seven".