89672221 has 4 divisors (see below), whose sum is σ = 89712000. Its totient is φ = 89632444.

The previous prime is 89672179. The next prime is 89672227. The reversal of 89672221 is 12227698.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89672221 - 2⁹ = 89671709 is a prime.

It is a super-2 number, since 2×89672221² = 16082214438145682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89672227) 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, 16291 + ... + 21088.

It is an arithmetic number, because the mean of its divisors is an integer number (22428000).

Almost surely, 2^89672221 is an apocalyptic number.

It is an amenable number.

89672221 is a deficient number, since it is larger than the sum of its proper divisors (39779).

89672221 is a wasteful number, since it uses less digits than its factorization.

89672221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39778.

The product of its digits is 24192, while the sum is 37.

The square root of 89672221 is about 9469.5417523764. The cubic root of 89672221 is about 447.5957719761.

The spelling of 89672221 in words is "eighty-nine million, six hundred seventy-two thousand, two hundred twenty-one".