88288991 has 8 divisors (see below), whose sum is σ = 106212480. Its totient is φ = 71693208.

The previous prime is 88288987. The next prime is 88289011. The reversal of 88288991 is 19988288.

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 88288991 - 2² = 88288987 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 (88288951) 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, 331781 + ... + 332046.

It is an arithmetic number, because the mean of its divisors is an integer number (13276560).

Almost surely, 2^88288991 is an apocalyptic number.

88288991 is a deficient number, since it is larger than the sum of its proper divisors (17923489).

88288991 is a wasteful number, since it uses less digits than its factorization.

88288991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663853.

The product of its digits is 663552, while the sum is 53.

The square root of 88288991 is about 9396.2221663816. Note that the first 3 decimals coincide. The cubic root of 88288991 is about 445.2823877806.

The spelling of 88288991 in words is "eighty-eight million, two hundred eighty-eight thousand, nine hundred ninety-one".