89135993 has 8 divisors (see below), whose sum is σ = 90532488. Its totient is φ = 87744384.

The previous prime is 89135987. The next prime is 89136013. The reversal of 89135993 is 39953198.

It can be written as a sum of positive squares in 4 ways, for example, as 24285184 + 64850809 = 4928^2 + 8053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89135993 - 2⁸ = 89135737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89135933) 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 in 7 ways as a sum of consecutive naturals, for example, 54455 + ... + 56067.

It is an arithmetic number, because the mean of its divisors is an integer number (11316561).

Almost surely, 2^89135993 is an apocalyptic number.

It is an amenable number.

89135993 is a deficient number, since it is larger than the sum of its proper divisors (1396495).

89135993 is a wasteful number, since it uses less digits than its factorization.

89135993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its digits is 262440, while the sum is 47.

The square root of 89135993 is about 9441.1859954139. The cubic root of 89135993 is about 446.7017998527.

The spelling of 89135993 in words is "eighty-nine million, one hundred thirty-five thousand, nine hundred ninety-three".