98575999 has 4 divisors (see below), whose sum is σ = 102861936. Its totient is φ = 94290064.

The previous prime is 98575973. The next prime is 98576011. The reversal of 98575999 is 99957589.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99957589 = 61 ⋅1638649.

It is not a de Polignac number, because 98575999 - 2⁹ = 98575487 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 (98575699) 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, 2142934 + ... + 2142979.

It is an arithmetic number, because the mean of its divisors is an integer number (25715484).

Almost surely, 2^98575999 is an apocalyptic number.

98575999 is a deficient number, since it is larger than the sum of its proper divisors (4285937).

98575999 is a wasteful number, since it uses less digits than its factorization.

98575999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285936.

The product of its digits is 9185400, while the sum is 61.

The square root of 98575999 is about 9928.5446566957. The cubic root of 98575999 is about 461.9451328807.

The spelling of 98575999 in words is "ninety-eight million, five hundred seventy-five thousand, nine hundred ninety-nine".