98189861 has 8 divisors (see below), whose sum is σ = 122418624. Its totient is φ = 76511520.

The previous prime is 98189851. The next prime is 98189863. The reversal of 98189861 is 16898189.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98189861 - 2¹⁰ = 98188837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98189863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637520 + ... + 637673.

It is an arithmetic number, because the mean of its divisors is an integer number (15302328).

Almost surely, 2^98189861 is an apocalyptic number.

It is an amenable number.

98189861 is a deficient number, since it is larger than the sum of its proper divisors (24228763).

98189861 is a wasteful number, since it uses less digits than its factorization.

98189861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275211.

The product of its digits is 248832, while the sum is 50.

The square root of 98189861 is about 9909.0797251813. The cubic root of 98189861 is about 461.3411725287.

The spelling of 98189861 in words is "ninety-eight million, one hundred eighty-nine thousand, eight hundred sixty-one".