89955973 has 2 divisors, whose sum is σ = 89955974. Its totient is φ = 89955972.

The previous prime is 89955889. The next prime is 89956001. The reversal of 89955973 is 37955998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89151364 + 804609 = 9442^2 + 897^2 .

It is a cyclic number.

It is not a de Polignac number, because 89955973 - 2¹⁷ = 89824901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89955373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44977986 + 44977987.

It is an arithmetic number, because the mean of its divisors is an integer number (44977987).

Almost surely, 2^89955973 is an apocalyptic number.

It is an amenable number.

89955973 is a deficient number, since it is larger than the sum of its proper divisors (1).

89955973 is an equidigital number, since it uses as much as digits as its factorization.

89955973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 55.

The square root of 89955973 is about 9484.5122700116. The cubic root of 89955973 is about 448.0673876230.

The spelling of 89955973 in words is "eighty-nine million, nine hundred fifty-five thousand, nine hundred seventy-three".