98739 has 20 divisors (see below), whose sum is σ = 156816. Its totient is φ = 61776.

The previous prime is 98737. The next prime is 98773. The reversal of 98739 is 93789.

It is not a de Polignac number, because 98739 - 2¹ = 98737 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 98739.

It is not an unprimeable number, because it can be changed into a prime (98731) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1837 + ... + 1889.

2⁹⁸⁷³⁹ is an apocalyptic number.

98739 is a deficient number, since it is larger than the sum of its proper divisors (58077).

98739 is a wasteful number, since it uses less digits than its factorization.

98739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 79 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 98739 is about 314.2276245017. The cubic root of 98739 is about 46.2199610152.

Subtracting from 98739 its reverse (93789), we obtain a triangular number (4950 = T₉₉).

The spelling of 98739 in words is "ninety-eight thousand, seven hundred thirty-nine".