99988801 has 4 divisors (see below), whose sum is σ = 109078704. Its totient is φ = 90898900.

The previous prime is 99988771. The next prime is 99988807. The reversal of 99988801 is 10888999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10888999 = 11 ⋅989909.

It is a cyclic number.

It is not a de Polignac number, because 99988801 - 2⁹ = 99988289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99988807) 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, 4544935 + ... + 4544956.

It is an arithmetic number, because the mean of its divisors is an integer number (27269676).

Almost surely, 2^99988801 is an apocalyptic number.

It is an amenable number.

99988801 is a deficient number, since it is larger than the sum of its proper divisors (9089903).

99988801 is a wasteful number, since it uses less digits than its factorization.

99988801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9089902.

The product of its (nonzero) digits is 373248, while the sum is 52.

The square root of 99988801 is about 9999.4400343219. The cubic root of 99988801 is about 464.1415556633.

The spelling of 99988801 in words is "ninety-nine million, nine hundred eighty-eight thousand, eight hundred one".