84598000891 has 2 divisors, whose sum is σ = 84598000892. Its totient is φ = 84598000890.

The previous prime is 84598000849. The next prime is 84598000913. The reversal of 84598000891 is 19800089548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84598000891 - 2⁷ = 84598000763 is a prime.

It is not a weakly prime, because it can be changed into another prime (84598000801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42299000445 + 42299000446.

It is an arithmetic number, because the mean of its divisors is an integer number (42299000446).

Almost surely, 2^84598000891 is an apocalyptic number.

84598000891 is a deficient number, since it is larger than the sum of its proper divisors (1).

84598000891 is an equidigital number, since it uses as much as digits as its factorization.

84598000891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 84598000891 in words is "eighty-four billion, five hundred ninety-eight million, eight hundred ninety-one", and thus it is an aban number.