89631349 has 2 divisors, whose sum is σ = 89631350. Its totient is φ = 89631348.

The previous prime is 89631331. The next prime is 89631389. The reversal of 89631349 is 94313698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87048900 + 2582449 = 9330^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 89631349 - 2⁹ = 89630837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89631319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44815674 + 44815675.

It is an arithmetic number, because the mean of its divisors is an integer number (44815675).

Almost surely, 2^89631349 is an apocalyptic number.

It is an amenable number.

89631349 is a deficient number, since it is larger than the sum of its proper divisors (1).

89631349 is an equidigital number, since it uses as much as digits as its factorization.

89631349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 89631349 is about 9467.3834294381. The cubic root of 89631349 is about 447.5277579195.

The spelling of 89631349 in words is "eighty-nine million, six hundred thirty-one thousand, three hundred forty-nine".