84512449 has 4 divisors (see below), whose sum is σ = 96585664. Its totient is φ = 72439236.

The previous prime is 84512429. The next prime is 84512459. The reversal of 84512449 is 94421548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84512449 - 2⁹ = 84511937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84512429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6036597 + ... + 6036610.

It is an arithmetic number, because the mean of its divisors is an integer number (24146416).

Almost surely, 2^84512449 is an apocalyptic number.

It is an amenable number.

84512449 is a deficient number, since it is larger than the sum of its proper divisors (12073215).

84512449 is a wasteful number, since it uses less digits than its factorization.

84512449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12073214.

The product of its digits is 46080, while the sum is 37.

The square root of 84512449 is about 9193.0652668193. The cubic root of 84512449 is about 438.8406964502.

Subtracting 84512449 from its reverse (94421548), we obtain a palindrome (9909099).

The spelling of 84512449 in words is "eighty-four million, five hundred twelve thousand, four hundred forty-nine".