89491201 has 2 divisors, whose sum is σ = 89491202. Its totient is φ = 89491200.

The previous prime is 89491153. The next prime is 89491217. The reversal of 89491201 is 10219498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70560000 + 18931201 = 8400^2 + 4351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89491201 is a prime.

It is not a weakly prime, because it can be changed into another prime (89491231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44745600 + 44745601.

It is an arithmetic number, because the mean of its divisors is an integer number (44745601).

Almost surely, 2^89491201 is an apocalyptic number.

It is an amenable number.

89491201 is a deficient number, since it is larger than the sum of its proper divisors (1).

89491201 is an equidigital number, since it uses as much as digits as its factorization.

89491201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 89491201 is about 9459.9789111816. The cubic root of 89491201 is about 447.2943840714.

The spelling of 89491201 in words is "eighty-nine million, four hundred ninety-one thousand, two hundred one".