89901027217 has 4 divisors (see below), whose sum is σ = 89904798180. Its totient is φ = 89897256256.

The previous prime is 89901027187. The next prime is 89901027277. The reversal of 89901027217 is 71272010998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71272010998 = 2 ⋅35636005499.

It can be written as a sum of positive squares in 2 ways, for example, as 577152576 + 89323874641 = 24024^2 + 298871^2 .

It is a cyclic number.

It is not a de Polignac number, because 89901027217 - 2⁷ = 89901027089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89901027277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1849492 + ... + 1897477.

It is an arithmetic number, because the mean of its divisors is an integer number (22476199545).

Almost surely, 2^89901027217 is an apocalyptic number.

It is an amenable number.

89901027217 is a deficient number, since it is larger than the sum of its proper divisors (3770963).

89901027217 is a wasteful number, since it uses less digits than its factorization.

89901027217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770962.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 89901027217 in words is "eighty-nine billion, nine hundred one million, twenty-seven thousand, two hundred seventeen".