84053905 has 8 divisors (see below), whose sum is σ = 108623592. Its totient is φ = 62070528.

The previous prime is 84053903. The next prime is 84053941. The reversal of 84053905 is 50935048.

It can be written as a sum of positive squares in 4 ways, for example, as 12702096 + 71351809 = 3564^2 + 8447^2 .

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

It is not a de Polignac number, because 84053905 - 2¹ = 84053903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84053903) 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 in 7 ways as a sum of consecutive naturals, for example, 646504 + ... + 646633.

It is an arithmetic number, because the mean of its divisors is an integer number (13577949).

Almost surely, 2^84053905 is an apocalyptic number.

It is an amenable number.

84053905 is a deficient number, since it is larger than the sum of its proper divisors (24569687).

84053905 is a wasteful number, since it uses less digits than its factorization.

84053905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293155.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 84053905 is about 9168.0916771158. The cubic root of 84053905 is about 438.0455756944.

It can be divided in two parts, 840 and 53905, that added together give a palindrome (54745).

The spelling of 84053905 in words is "eighty-four million, fifty-three thousand, nine hundred five".