89975321 has 2 divisors, whose sum is σ = 89975322. Its totient is φ = 89975320.

The previous prime is 89975273. The next prime is 89975329. The reversal of 89975321 is 12357998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 1990921 = 9380^2 + 1411^2 .

It is a cyclic number.

It is not a de Polignac number, because 89975321 - 2¹⁴ = 89958937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89975329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44987660 + 44987661.

It is an arithmetic number, because the mean of its divisors is an integer number (44987661).

Almost surely, 2^89975321 is an apocalyptic number.

It is an amenable number.

89975321 is a deficient number, since it is larger than the sum of its proper divisors (1).

89975321 is an equidigital number, since it uses as much as digits as its factorization.

89975321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The square root of 89975321 is about 9485.5321938202. The cubic root of 89975321 is about 448.0995092119.

The spelling of 89975321 in words is "eighty-nine million, nine hundred seventy-five thousand, three hundred twenty-one".