84553879 has 8 divisors (see below), whose sum is σ = 87928560. Its totient is φ = 81209856.

The previous prime is 84553873. The next prime is 84553901. The reversal of 84553879 is 97835548.

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 84553879 - 2⁹ = 84553367 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 (84553873) 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 7 ways as a sum of consecutive naturals, for example, 1957 + ... + 13150.

It is an arithmetic number, because the mean of its divisors is an integer number (10991070).

Almost surely, 2^84553879 is an apocalyptic number.

84553879 is a deficient number, since it is larger than the sum of its proper divisors (3374681).

84553879 is a wasteful number, since it uses less digits than its factorization.

84553879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15329.

The product of its digits is 1209600, while the sum is 49.

The square root of 84553879 is about 9195.3183196668. The cubic root of 84553879 is about 438.9123947626.

The spelling of 84553879 in words is "eighty-four million, five hundred fifty-three thousand, eight hundred seventy-nine".