84598 has 4 divisors (see below), whose sum is σ = 126900. Its totient is φ = 42298.

The previous prime is 84589. The next prime is 84629. The reversal of 84598 is 89548.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21148 + ... + 21151.

It is an arithmetic number, because the mean of its divisors is an integer number (31725).

2⁸⁴⁵⁹⁸ is an apocalyptic number.

84598 is a deficient number, since it is larger than the sum of its proper divisors (42302).

84598 is a wasteful number, since it uses less digits than its factorization.

84598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42301.

The product of its digits is 11520, while the sum is 34.

The square root of 84598 is about 290.8573533538. The cubic root of 84598 is about 43.8988724343.

Subtracting 84598 from its reverse (89548), we obtain a triangular number (4950 = T₉₉).

The spelling of 84598 in words is "eighty-four thousand, five hundred ninety-eight".