84578241 has 8 divisors (see below), whose sum is σ = 123022944. Its totient is φ = 51259520.

The previous prime is 84578231. The next prime is 84578243. The reversal of 84578241 is 14287548.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84578241 - 2¹⁰ = 84577217 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84578241.

It is not an unprimeable number, because it can be changed into a prime (84578243) 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, 1281456 + ... + 1281521.

It is an arithmetic number, because the mean of its divisors is an integer number (15377868).

Almost surely, 2^84578241 is an apocalyptic number.

It is an amenable number.

84578241 is a deficient number, since it is larger than the sum of its proper divisors (38444703).

84578241 is a wasteful number, since it uses less digits than its factorization.

84578241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562991.

The product of its digits is 71680, while the sum is 39.

The square root of 84578241 is about 9196.6429201095. The cubic root of 84578241 is about 438.9545444432.

The spelling of 84578241 in words is "eighty-four million, five hundred seventy-eight thousand, two hundred forty-one".