89174278221 has 24 divisors (see below), whose sum is σ = 138966676704. Its totient is φ = 50715211680.

The previous prime is 89174278201. The next prime is 89174278241. The reversal of 89174278221 is 12287247198.

It is an interprime number because it is at equal distance from previous prime (89174278201) and next prime (89174278241).

It is not a de Polignac number, because 89174278221 - 2⁷ = 89174278093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89174278201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1406490 + ... + 1468523.

It is an arithmetic number, because the mean of its divisors is an integer number (5790278196).

Almost surely, 2^89174278221 is an apocalyptic number.

It is an amenable number.

89174278221 is a deficient number, since it is larger than the sum of its proper divisors (49792398483).

89174278221 is a wasteful number, since it uses less digits than its factorization.

89174278221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875241 (or 2875234 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The spelling of 89174278221 in words is "eighty-nine billion, one hundred seventy-four million, two hundred seventy-eight thousand, two hundred twenty-one".