84820718 has 32 divisors (see below), whose sum is σ = 140107968. Its totient is φ = 38348800.

The previous prime is 84820699. The next prime is 84820721. The reversal of 84820718 is 81702848.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 98546 + ... + 99402.

It is an arithmetic number, because the mean of its divisors is an integer number (4378374).

Almost surely, 2^84820718 is an apocalyptic number.

84820718 is a deficient number, since it is larger than the sum of its proper divisors (55287250).

84820718 is a wasteful number, since it uses less digits than its factorization.

84820718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 84820718 is about 9209.8163933924. The cubic root of 84820718 is about 439.3736231861.

The spelling of 84820718 in words is "eighty-four million, eight hundred twenty thousand, seven hundred eighteen".