98678 has 4 divisors (see below), whose sum is σ = 148020. Its totient is φ = 49338.

The previous prime is 98669. The next prime is 98689. The reversal of 98678 is 87689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87689 = 7 ⋅12527.

It is a congruent number.

It is an unprimeable number.

98678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24668 + ... + 24671.

It is an arithmetic number, because the mean of its divisors is an integer number (37005).

2⁹⁸⁶⁷⁸ is an apocalyptic number.

98678 is a deficient number, since it is larger than the sum of its proper divisors (49342).

98678 is a wasteful number, since it uses less digits than its factorization.

98678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49341.

The product of its digits is 24192, while the sum is 38.

The square root of 98678 is about 314.1305461110. The cubic root of 98678 is about 46.2104409727.

The spelling of 98678 in words is "ninety-eight thousand, six hundred seventy-eight".