88389281 has 8 divisors (see below), whose sum is σ = 91620480. Its totient is φ = 85214448.

The previous prime is 88389269. The next prime is 88389283. The reversal of 88389281 is 18298388.

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 88389281 - 2²⁶ = 21280417 is a prime.

It is a super-2 number, since 2×88389281² = 15625329991393922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88389283) 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, 10886 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (11452560).

Almost surely, 2^88389281 is an apocalyptic number.

It is an amenable number.

88389281 is a deficient number, since it is larger than the sum of its proper divisors (3231199).

88389281 is a wasteful number, since it uses less digits than its factorization.

88389281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28183.

The product of its digits is 221184, while the sum is 47.

The square root of 88389281 is about 9401.5573709891. The cubic root of 88389281 is about 445.4509269972.

The spelling of 88389281 in words is "eighty-eight million, three hundred eighty-nine thousand, two hundred eighty-one".