89355631 has 2 divisors, whose sum is σ = 89355632. Its totient is φ = 89355630.

The previous prime is 89355473. The next prime is 89355649. The reversal of 89355631 is 13655398.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89355631 - 2¹⁹ = 88831343 is a prime.

It is a super-2 number, since 2×89355631² = 15968857582816322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89355661) 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, 44677815 + 44677816.

It is an arithmetic number, because the mean of its divisors is an integer number (44677816).

Almost surely, 2^89355631 is an apocalyptic number.

89355631 is a deficient number, since it is larger than the sum of its proper divisors (1).

89355631 is an equidigital number, since it uses as much as digits as its factorization.

89355631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 89355631 is about 9452.8107460162. The cubic root of 89355631 is about 447.0684015325.

The spelling of 89355631 in words is "eighty-nine million, three hundred fifty-five thousand, six hundred thirty-one".