84243351 has 4 divisors (see below), whose sum is σ = 112324472. Its totient is φ = 56162232.

The previous prime is 84243311. The next prime is 84243361. The reversal of 84243351 is 15334248.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84243351 - 2¹³ = 84235159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84243301) 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, 14040556 + ... + 14040561.

It is an arithmetic number, because the mean of its divisors is an integer number (28081118).

Almost surely, 2^84243351 is an apocalyptic number.

84243351 is a deficient number, since it is larger than the sum of its proper divisors (28081121).

84243351 is a wasteful number, since it uses less digits than its factorization.

84243351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28081120.

The product of its digits is 11520, while the sum is 30.

The square root of 84243351 is about 9178.4176740874. The cubic root of 84243351 is about 438.3744270180.

Adding to 84243351 its reverse (15334248), we get a palindrome (99577599).

The spelling of 84243351 in words is "eighty-four million, two hundred forty-three thousand, three hundred fifty-one".