84512297 has 4 divisors (see below), whose sum is σ = 84563796. Its totient is φ = 84460800.

The previous prime is 84512291. The next prime is 84512299. The reversal of 84512297 is 79221548.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60902416 + 23609881 = 7804^2 + 4859^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84512297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84512297.

It is not an unprimeable number, because it can be changed into a prime (84512291) 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, 23204 + ... + 26597.

It is an arithmetic number, because the mean of its divisors is an integer number (21140949).

Almost surely, 2^84512297 is an apocalyptic number.

It is an amenable number.

84512297 is a deficient number, since it is larger than the sum of its proper divisors (51499).

84512297 is a wasteful number, since it uses less digits than its factorization.

84512297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51498.

The product of its digits is 40320, while the sum is 38.

The square root of 84512297 is about 9193.0569997145. The cubic root of 84512297 is about 438.8404333575.

The spelling of 84512297 in words is "eighty-four million, five hundred twelve thousand, two hundred ninety-seven".