84598813 has 6 divisors (see below), whose sum is σ = 91142142. Its totient is φ = 78060600.

The previous prime is 84598799. The next prime is 84598819. The reversal of 84598813 is 31889548.

It can be written as a sum of positive squares in only one way, i.e., 58568409 + 26030404 = 7653^2 + 5102^2 .

It is a de Polignac number, because none of the positive numbers 2^k-84598813 is a prime.

It is a super-2 number, since 2×84598813² = 14313918322017938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84598819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31888 + ... + 34438.

It is an arithmetic number, because the mean of its divisors is an integer number (15190357).

Almost surely, 2^84598813 is an apocalyptic number.

It is an amenable number.

84598813 is a deficient number, since it is larger than the sum of its proper divisors (6543329).

84598813 is an frugal number, since it uses more digits than its factorization.

84598813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115 (or 2564 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 84598813 is about 9197.7613037086. The cubic root of 84598813 is about 438.9901305890.

The spelling of 84598813 in words is "eighty-four million, five hundred ninety-eight thousand, eight hundred thirteen".