88120009 has 8 divisors (see below), whose sum is σ = 91264320. Its totient is φ = 84982800.

The previous prime is 88120007. The next prime is 88120013. The reversal of 88120009 is 90002188.

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 88120009 - 2¹ = 88120007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42814 + ... + 44824.

It is an arithmetic number, because the mean of its divisors is an integer number (11408040).

Almost surely, 2^88120009 is an apocalyptic number.

It is an amenable number.

88120009 is a deficient number, since it is larger than the sum of its proper divisors (3144311).

88120009 is a wasteful number, since it uses less digits than its factorization.

88120009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 88120009 is about 9387.2258415359. The cubic root of 88120009 is about 444.9981214414.

The spelling of 88120009 in words is "eighty-eight million, one hundred twenty thousand, nine".