89388623 has 2 divisors, whose sum is σ = 89388624. Its totient is φ = 89388622.

The previous prime is 89388619. The next prime is 89388647. The reversal of 89388623 is 32688398.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89388623 - 2² = 89388619 is a prime.

It is a super-2 number, since 2×89388623² = 15980651843672258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89388613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44694311 + 44694312.

It is an arithmetic number, because the mean of its divisors is an integer number (44694312).

Almost surely, 2^89388623 is an apocalyptic number.

89388623 is a deficient number, since it is larger than the sum of its proper divisors (1).

89388623 is an equidigital number, since it uses as much as digits as its factorization.

89388623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The square root of 89388623 is about 9454.5556743826. Note that the first 3 decimals coincide. The cubic root of 89388623 is about 447.1234171505.

The spelling of 89388623 in words is "eighty-nine million, three hundred eighty-eight thousand, six hundred twenty-three".