84930887 has 2 divisors, whose sum is σ = 84930888. Its totient is φ = 84930886.

The previous prime is 84930871. The next prime is 84930919. The reversal of 84930887 is 78803948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84930887 - 2⁴ = 84930871 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 (84930787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42465443 + 42465444.

It is an arithmetic number, because the mean of its divisors is an integer number (42465444).

Almost surely, 2^84930887 is an apocalyptic number.

84930887 is a deficient number, since it is larger than the sum of its proper divisors (1).

84930887 is an equidigital number, since it uses as much as digits as its factorization.

84930887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 84930887 is about 9215.7955163947. The cubic root of 84930887 is about 439.5637670249.

The spelling of 84930887 in words is "eighty-four million, nine hundred thirty thousand, eight hundred eighty-seven".