83899853 has 2 divisors, whose sum is σ = 83899854. Its totient is φ = 83899852.

The previous prime is 83899799. The next prime is 83899889. The reversal of 83899853 is 35899838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 4012009 = 8938^2 + 2003^2 .

It is a cyclic number.

It is not a de Polignac number, because 83899853 - 2⁶ = 83899789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83899795 and 83899804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83899253) 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, 41949926 + 41949927.

It is an arithmetic number, because the mean of its divisors is an integer number (41949927).

Almost surely, 2^83899853 is an apocalyptic number.

It is an amenable number.

83899853 is a deficient number, since it is larger than the sum of its proper divisors (1).

83899853 is an equidigital number, since it uses as much as digits as its factorization.

83899853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 83899853 is about 9159.6862937548. The cubic root of 83899853 is about 437.7777988616. Note that the first 4 decimals are identical.

The spelling of 83899853 in words is "eighty-three million, eight hundred ninety-nine thousand, eight hundred fifty-three".