89313993 has 12 divisors (see below), whose sum is σ = 129092340. Its totient is φ = 59504256.

The previous prime is 89313989. The next prime is 89314013. The reversal of 89313993 is 39931398.

It can be written as a sum of positive squares in 2 ways, for example, as 44195904 + 45118089 = 6648^2 + 6717^2 .

It is not a de Polignac number, because 89313993 - 2² = 89313989 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89313923) 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 11 ways as a sum of consecutive naturals, for example, 21813 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (10757695).

Almost surely, 2^89313993 is an apocalyptic number.

It is an amenable number.

89313993 is a deficient number, since it is larger than the sum of its proper divisors (39778347).

89313993 is a wasteful number, since it uses less digits than its factorization.

89313993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408 (or 6405 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 89313993 is about 9450.6080756743. The cubic root of 89313993 is about 446.9989489938.

The spelling of 89313993 in words is "eighty-nine million, three hundred thirteen thousand, nine hundred ninety-three".