98667839 has 4 divisors (see below), whose sum is σ = 98688360. Its totient is φ = 98647320.

The previous prime is 98667797. The next prime is 98667841. The reversal of 98667839 is 93876689.

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

It is a cyclic number.

It is not a de Polignac number, because 98667839 - 2¹² = 98663743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98667739) 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, 1277 + ... + 14105.

It is an arithmetic number, because the mean of its divisors is an integer number (24672090).

Almost surely, 2^98667839 is an apocalyptic number.

98667839 is a deficient number, since it is larger than the sum of its proper divisors (20521).

98667839 is a wasteful number, since it uses less digits than its factorization.

98667839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520.

The product of its digits is 3919104, while the sum is 56.

The square root of 98667839 is about 9933.1686283884. The cubic root of 98667839 is about 462.0885480220.

The spelling of 98667839 in words is "ninety-eight million, six hundred sixty-seven thousand, eight hundred thirty-nine".