88667729 has 2 divisors, whose sum is σ = 88667730. Its totient is φ = 88667728.

The previous prime is 88667723. The next prime is 88667731. The reversal of 88667729 is 92776688.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87928129 + 739600 = 9377^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 88667729 - 2¹⁶ = 88602193 is a prime.

Together with 88667731, 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 (88667723) 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 as a sum of consecutive naturals, namely, 44333864 + 44333865.

It is an arithmetic number, because the mean of its divisors is an integer number (44333865).

Almost surely, 2^88667729 is an apocalyptic number.

It is an amenable number.

88667729 is a deficient number, since it is larger than the sum of its proper divisors (1).

88667729 is an equidigital number, since it uses as much as digits as its factorization.

88667729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 53.

The square root of 88667729 is about 9416.3543370033. The cubic root of 88667729 is about 445.9181967044.

The spelling of 88667729 in words is "eighty-eight million, six hundred sixty-seven thousand, seven hundred twenty-nine".