84623853 has 8 divisors (see below), whose sum is σ = 118770400. Its totient is φ = 53446608.

The previous prime is 84623849. The next prime is 84623857. The reversal of 84623853 is 35832648.

It is an interprime number because it is at equal distance from previous prime (84623849) and next prime (84623857).

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

It is not a de Polignac number, because 84623853 - 2² = 84623849 is a prime.

It is a super-2 number, since 2×84623853² = 14322392993131218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84623857) 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 7 ways as a sum of consecutive naturals, for example, 742258 + ... + 742371.

It is an arithmetic number, because the mean of its divisors is an integer number (14846300).

Almost surely, 2^84623853 is an apocalyptic number.

It is an amenable number.

84623853 is a deficient number, since it is larger than the sum of its proper divisors (34146547).

84623853 is a wasteful number, since it uses less digits than its factorization.

84623853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484651.

The product of its digits is 138240, while the sum is 39.

The square root of 84623853 is about 9199.1224037948. The cubic root of 84623853 is about 439.0334378496.

The spelling of 84623853 in words is "eighty-four million, six hundred twenty-three thousand, eight hundred fifty-three".