89245421 has 2 divisors, whose sum is σ = 89245422. Its totient is φ = 89245420.

The previous prime is 89245411. The next prime is 89245459. The reversal of 89245421 is 12454298.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 8497225 = 8986^2 + 2915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89245421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89245411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44622710 + 44622711.

It is an arithmetic number, because the mean of its divisors is an integer number (44622711).

Almost surely, 2^89245421 is an apocalyptic number.

It is an amenable number.

89245421 is a deficient number, since it is larger than the sum of its proper divisors (1).

89245421 is an equidigital number, since it uses as much as digits as its factorization.

89245421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The square root of 89245421 is about 9446.9794643579. The cubic root of 89245421 is about 446.8845232522.

It can be divided in two parts, 8 and 9245421, that added together give a palindrome (9245429).

The spelling of 89245421 in words is "eighty-nine million, two hundred forty-five thousand, four hundred twenty-one".