89280121 has 8 divisors (see below), whose sum is σ = 102124224. Its totient is φ = 76458480.

The previous prime is 89280097. The next prime is 89280151. The reversal of 89280121 is 12108298.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-89280121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89280151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4011 + ... + 13951.

It is an arithmetic number, because the mean of its divisors is an integer number (12765528).

Almost surely, 2^89280121 is an apocalyptic number.

It is an amenable number.

89280121 is a deficient number, since it is larger than the sum of its proper divisors (12844103).

89280121 is a wasteful number, since it uses less digits than its factorization.

89280121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11231.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 89280121 is about 9448.8158517351. The cubic root of 89280121 is about 446.9424342854.

It can be divided in two parts, 89280 and 121, that added together give a square (89401 = 299²).

The spelling of 89280121 in words is "eighty-nine million, two hundred eighty thousand, one hundred twenty-one".