84993853 has 4 divisors (see below), whose sum is σ = 97135840. Its totient is φ = 72851868.

The previous prime is 84993851. The next prime is 84993869. The reversal of 84993853 is 35839948.

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 84993853 - 2¹ = 84993851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84993797 and 84993806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84993851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6070983 + ... + 6070996.

It is an arithmetic number, because the mean of its divisors is an integer number (24283960).

Almost surely, 2^84993853 is an apocalyptic number.

It is an amenable number.

84993853 is a deficient number, since it is larger than the sum of its proper divisors (12141987).

84993853 is a wasteful number, since it uses less digits than its factorization.

84993853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12141986.

The product of its digits is 933120, while the sum is 49.

The square root of 84993853 is about 9219.2110833845. The cubic root of 84993853 is about 439.6723680144.

The spelling of 84993853 in words is "eighty-four million, nine hundred ninety-three thousand, eight hundred fifty-three".