84893183987 has 2 divisors, whose sum is σ = 84893183988. Its totient is φ = 84893183986.

The previous prime is 84893183953. The next prime is 84893184007. The reversal of 84893183987 is 78938139848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84893183987 - 2⁶ = 84893183923 is a prime.

It is not a weakly prime, because it can be changed into another prime (84893183387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42446591993 + 42446591994.

It is an arithmetic number, because the mean of its divisors is an integer number (42446591994).

Almost surely, 2^84893183987 is an apocalyptic number.

84893183987 is a deficient number, since it is larger than the sum of its proper divisors (1).

84893183987 is an equidigital number, since it uses as much as digits as its factorization.

84893183987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 68.

The spelling of 84893183987 in words is "eighty-four billion, eight hundred ninety-three million, one hundred eighty-three thousand, nine hundred eighty-seven".