89973601 has 2 divisors, whose sum is σ = 89973602. Its totient is φ = 89973600.

The previous prime is 89973581. The next prime is 89973613. The reversal of 89973601 is 10637998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64963600 + 25010001 = 8060^2 + 5001^2 .

It is a cyclic number.

It is not a de Polignac number, because 89973601 - 2⁷ = 89973473 is a prime.

It is not a weakly prime, because it can be changed into another prime (89973661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44986800 + 44986801.

It is an arithmetic number, because the mean of its divisors is an integer number (44986801).

Almost surely, 2^89973601 is an apocalyptic number.

It is an amenable number.

89973601 is a deficient number, since it is larger than the sum of its proper divisors (1).

89973601 is an equidigital number, since it uses as much as digits as its factorization.

89973601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 89973601 is about 9485.4415289959. The cubic root of 89973601 is about 448.0966538509.

The spelling of 89973601 in words is "eighty-nine million, nine hundred seventy-three thousand, six hundred one".