84722853 has 4 divisors (see below), whose sum is σ = 112963808. Its totient is φ = 56481900.

The previous prime is 84722837. The next prime is 84722861. The reversal of 84722853 is 35822748.

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 not a de Polignac number, because 84722853 - 2⁴ = 84722837 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 (84722873) 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, 14120473 + ... + 14120478.

It is an arithmetic number, because the mean of its divisors is an integer number (28240952).

Almost surely, 2^84722853 is an apocalyptic number.

It is an amenable number.

84722853 is a deficient number, since it is larger than the sum of its proper divisors (28240955).

84722853 is a wasteful number, since it uses less digits than its factorization.

84722853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28240954.

The product of its digits is 107520, while the sum is 39.

The square root of 84722853 is about 9204.5017790210. The cubic root of 84722853 is about 439.2045770357.

It can be divided in two parts, 8472 and 2853, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 84722853 in words is "eighty-four million, seven hundred twenty-two thousand, eight hundred fifty-three".