89540902217 has 16 divisors (see below), whose sum is σ = 97570584720. Its totient is φ = 81675466752.

The previous prime is 89540902201. The next prime is 89540902247. The reversal of 89540902217 is 71220904598.

It can be written as a sum of positive squares in 8 ways, for example, as 12295261456 + 77245640761 = 110884^2 + 277931^2 .

It is a cyclic number.

It is not a de Polignac number, because 89540902217 - 2⁴ = 89540902201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89540902247) 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 15 ways as a sum of consecutive naturals, for example, 1982753 + ... + 2027409.

It is an arithmetic number, because the mean of its divisors is an integer number (6098161545).

Almost surely, 2^89540902217 is an apocalyptic number.

It is an amenable number.

89540902217 is a deficient number, since it is larger than the sum of its proper divisors (8029682503).

89540902217 is a wasteful number, since it uses less digits than its factorization.

89540902217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46492.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 89540902217 in words is "eighty-nine billion, five hundred forty million, nine hundred two thousand, two hundred seventeen".