99998547 has 8 divisors (see below), whose sum is σ = 145452480. Its totient is φ = 60605160.

The previous prime is 99998543. The next prime is 99998551. The reversal of 99998547 is 74589999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99998543) and next prime (99998551).

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

It is not a de Polignac number, because 99998547 - 2² = 99998543 is a prime.

It is a super-2 number, since 2×99998547² = 19999418804222418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99998543) 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, 1515097 + ... + 1515162.

It is an arithmetic number, because the mean of its divisors is an integer number (18181560).

Almost surely, 2^99998547 is an apocalyptic number.

99998547 is a deficient number, since it is larger than the sum of its proper divisors (45453933).

99998547 is a wasteful number, since it uses less digits than its factorization.

99998547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030273.

The product of its digits is 7348320, while the sum is 60.

The square root of 99998547 is about 9999.9273497361. The cubic root of 99998547 is about 464.1566352742.

The spelling of 99998547 in words is "ninety-nine million, nine hundred ninety-eight thousand, five hundred forty-seven".