88591289 has 2 divisors, whose sum is σ = 88591290. Its totient is φ = 88591288.

The previous prime is 88591277. The next prime is 88591291. The reversal of 88591289 is 98219588.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54169600 + 34421689 = 7360^2 + 5867^2 .

It is a cyclic number.

It is not a de Polignac number, because 88591289 - 2¹⁶ = 88525753 is a prime.

Together with 88591291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88591189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44295644 + 44295645.

It is an arithmetic number, because the mean of its divisors is an integer number (44295645).

Almost surely, 2^88591289 is an apocalyptic number.

It is an amenable number.

88591289 is a deficient number, since it is larger than the sum of its proper divisors (1).

88591289 is an equidigital number, since it uses as much as digits as its factorization.

88591289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 50.

The square root of 88591289 is about 9412.2945661512. The cubic root of 88591289 is about 445.7900185906.

The spelling of 88591289 in words is "eighty-eight million, five hundred ninety-one thousand, two hundred eighty-nine".