98015 has 4 divisors (see below), whose sum is σ = 117624. Its totient is φ = 78408.

The previous prime is 98011. The next prime is 98017. The reversal of 98015 is 51089.

98015 = 42² + 43² + ... + 71².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51089 = 47 ⋅1087.

It is a cyclic number.

It is not a de Polignac number, because 98015 - 2² = 98011 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9797 + ... + 9806.

It is an arithmetic number, because the mean of its divisors is an integer number (29406).

2⁹⁸⁰¹⁵ is an apocalyptic number.

98015 is a deficient number, since it is larger than the sum of its proper divisors (19609).

98015 is a wasteful number, since it uses less digits than its factorization.

98015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 98015 is about 313.0734738045. The cubic root of 98015 is about 46.1067150640.

The spelling of 98015 in words is "ninety-eight thousand, fifteen".