89884637 has 2 divisors, whose sum is σ = 89884638. Its totient is φ = 89884636.

The previous prime is 89884609. The next prime is 89884657. The reversal of 89884637 is 73648898.

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., 89226916 + 657721 = 9446^2 + 811^2 .

It is a cyclic number.

It is not a de Polignac number, because 89884637 - 2¹⁰ = 89883613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89884657) 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, 44942318 + 44942319.

It is an arithmetic number, because the mean of its divisors is an integer number (44942319).

Almost surely, 2^89884637 is an apocalyptic number.

It is an amenable number.

89884637 is a deficient number, since it is larger than the sum of its proper divisors (1).

89884637 is an equidigital number, since it uses as much as digits as its factorization.

89884637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 53.

The square root of 89884637 is about 9480.7508668881. The cubic root of 89884637 is about 447.9489156383.

The spelling of 89884637 in words is "eighty-nine million, eight hundred eighty-four thousand, six hundred thirty-seven".