88447881 has 4 divisors (see below), whose sum is σ = 117930512. Its totient is φ = 58965252.

The previous prime is 88447873. The next prime is 88447897. The reversal of 88447881 is 18874488.

It is a happy number.

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.

It is not a de Polignac number, because 88447881 - 2³ = 88447873 is a prime.

It is a super-2 number, since 2×88447881² = 15646055306780322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88447881.

It is not an unprimeable number, because it can be changed into a prime (88447081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14741311 + ... + 14741316.

It is an arithmetic number, because the mean of its divisors is an integer number (29482628).

Almost surely, 2^88447881 is an apocalyptic number.

It is an amenable number.

88447881 is a deficient number, since it is larger than the sum of its proper divisors (29482631).

88447881 is a wasteful number, since it uses less digits than its factorization.

88447881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29482630.

The product of its digits is 458752, while the sum is 48.

The square root of 88447881 is about 9404.6733595591. The cubic root of 88447881 is about 445.5493463889.

The spelling of 88447881 in words is "eighty-eight million, four hundred forty-seven thousand, eight hundred eighty-one".