89407121 has 2 divisors, whose sum is σ = 89407122. Its totient is φ = 89407120.

The previous prime is 89407117. The next prime is 89407147. The reversal of 89407121 is 12170498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 36772096 = 7255^2 + 6064^2 .

It is a cyclic number.

It is not a de Polignac number, because 89407121 - 2² = 89407117 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89407421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44703560 + 44703561.

It is an arithmetic number, because the mean of its divisors is an integer number (44703561).

Almost surely, 2^89407121 is an apocalyptic number.

It is an amenable number.

89407121 is a deficient number, since it is larger than the sum of its proper divisors (1).

89407121 is an equidigital number, since it uses as much as digits as its factorization.

89407121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 89407121 is about 9455.5338823358. The cubic root of 89407121 is about 447.1542574605.

It can be divided in two parts, 8940 and 7121, that added together give a palindrome (16061).

The spelling of 89407121 in words is "eighty-nine million, four hundred seven thousand, one hundred twenty-one".