84242241 has 8 divisors (see below), whose sum is σ = 124803360. Its totient is φ = 56161476.

The previous prime is 84242237. The next prime is 84242251. The reversal of 84242241 is 14224248.

It is not a de Polignac number, because 84242241 - 2² = 84242237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3120083 = 84242241 / (8 + 4 + 2 + 4 + 2 + 2 + 4 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84242251) 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, 1560015 + ... + 1560068.

It is an arithmetic number, because the mean of its divisors is an integer number (15600420).

Almost surely, 2^84242241 is an apocalyptic number.

It is an amenable number.

84242241 is a deficient number, since it is larger than the sum of its proper divisors (40561119).

84242241 is a wasteful number, since it uses less digits than its factorization.

84242241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120092 (or 3120086 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 84242241 is about 9178.3572059492. The cubic root of 84242241 is about 438.3725016524.

Adding to 84242241 its reverse (14224248), we get a palindrome (98466489).

The spelling of 84242241 in words is "eighty-four million, two hundred forty-two thousand, two hundred forty-one".