89678595221 has 4 divisors (see below), whose sum is σ = 89897858700. Its totient is φ = 89459331744.

The previous prime is 89678595191. The next prime is 89678595277. The reversal of 89678595221 is 12259587698.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76410780625 + 13267814596 = 276425^2 + 115186^2 .

It is a cyclic number.

It is not a de Polignac number, because 89678595221 - 2¹⁴ = 89678578837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89678595421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109631126 + ... + 109631943.

It is an arithmetic number, because the mean of its divisors is an integer number (22474464675).

Almost surely, 2^89678595221 is an apocalyptic number.

It is an amenable number.

89678595221 is a deficient number, since it is larger than the sum of its proper divisors (219263479).

89678595221 is a wasteful number, since it uses less digits than its factorization.

89678595221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219263478.

The product of its digits is 21772800, while the sum is 62.

The spelling of 89678595221 in words is "eighty-nine billion, six hundred seventy-eight million, five hundred ninety-five thousand, two hundred twenty-one".