7998853 has 2 divisors, whose sum is σ = 7998854. Its totient is φ = 7998852.

The previous prime is 7998847. The next prime is 7998863. The reversal of 7998853 is 3588997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5919489 + 2079364 = 2433^2 + 1442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7998853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7998797 and 7998806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7998803) 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 as a sum of consecutive naturals, namely, 3999426 + 3999427.

It is an arithmetic number, because the mean of its divisors is an integer number (3999427).

Almost surely, 2^7998853 is an apocalyptic number.

It is an amenable number.

7998853 is a deficient number, since it is larger than the sum of its proper divisors (1).

7998853 is an equidigital number, since it uses as much as digits as its factorization.

7998853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 49.

The square root of 7998853 is about 2828.2243546084. The cubic root of 7998853 is about 199.9904412098.

The spelling of 7998853 in words is "seven million, nine hundred ninety-eight thousand, eight hundred fifty-three".