98123999 has 8 divisors (see below), whose sum is σ = 103386240. Its totient is φ = 92871576.

The previous prime is 98123969. The next prime is 98124001. The reversal of 98123999 is 99932189.

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 98123999 - 2¹⁶ = 98058463 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 (98123969) 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, 27644 + ... + 30990.

It is an arithmetic number, because the mean of its divisors is an integer number (12923280).

Almost surely, 2^98123999 is an apocalyptic number.

98123999 is a deficient number, since it is larger than the sum of its proper divisors (5262241).

98123999 is a wasteful number, since it uses less digits than its factorization.

98123999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909.

The product of its digits is 314928, while the sum is 50.

The square root of 98123999 is about 9905.7558520287. The cubic root of 98123999 is about 461.2379994577.

The spelling of 98123999 in words is "ninety-eight million, one hundred twenty-three thousand, nine hundred ninety-nine".