273820005 has 12 divisors (see below), whose sum is σ = 474621420. Its totient is φ = 146037312.

The previous prime is 273819983. The next prime is 273820009. The reversal of 273820005 is 500028372.

It can be written as a sum of positive squares in 2 ways, for example, as 32421636 + 241398369 = 5694^2 + 15537^2 .

It is not a de Polignac number, because 273820005 - 2⁶ = 273819941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273820009) 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 11 ways as a sum of consecutive naturals, for example, 3042400 + ... + 3042489.

It is an arithmetic number, because the mean of its divisors is an integer number (39551785).

Almost surely, 2^273820005 is an apocalyptic number.

It is an amenable number.

273820005 is a deficient number, since it is larger than the sum of its proper divisors (200801415).

273820005 is a wasteful number, since it uses less digits than its factorization.

273820005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6084900 (or 6084897 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 273820005 is about 16547.5075162394. The cubic root of 273820005 is about 649.3642739006.

Adding to 273820005 its reverse (500028372), we get a palindrome (773848377).

The spelling of 273820005 in words is "two hundred seventy-three million, eight hundred twenty thousand, five".