84820893 has 4 divisors (see below), whose sum is σ = 113094528. Its totient is φ = 56547260.

The previous prime is 84820889. The next prime is 84820903. The reversal of 84820893 is 39802848.

It is a happy number.

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 84820893 - 2² = 84820889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84820873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14136813 + ... + 14136818.

It is an arithmetic number, because the mean of its divisors is an integer number (28273632).

Almost surely, 2^84820893 is an apocalyptic number.

It is an amenable number.

84820893 is a deficient number, since it is larger than the sum of its proper divisors (28273635).

84820893 is a wasteful number, since it uses less digits than its factorization.

84820893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28273634.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 84820893 is about 9209.8258941198. The cubic root of 84820893 is about 439.3739253542.

The spelling of 84820893 in words is "eighty-four million, eight hundred twenty thousand, eight hundred ninety-three".