89742361 has 4 divisors (see below), whose sum is σ = 89770932. Its totient is φ = 89713792.

The previous prime is 89742347. The next prime is 89742379. The reversal of 89742361 is 16324798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11526025 + 78216336 = 3395^2 + 8844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89742361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89742761) 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 3 ways as a sum of consecutive naturals, for example, 8896 + ... + 16081.

It is an arithmetic number, because the mean of its divisors is an integer number (22442733).

Almost surely, 2^89742361 is an apocalyptic number.

It is an amenable number.

89742361 is a deficient number, since it is larger than the sum of its proper divisors (28571).

89742361 is a wasteful number, since it uses less digits than its factorization.

89742361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28570.

The product of its digits is 72576, while the sum is 40.

The square root of 89742361 is about 9473.2444811691. The cubic root of 89742361 is about 447.7124420190.

The spelling of 89742361 in words is "eighty-nine million, seven hundred forty-two thousand, three hundred sixty-one".