273753813 has 4 divisors (see below), whose sum is σ = 365005088. Its totient is φ = 182502540.

The previous prime is 273753791. The next prime is 273753817. The reversal of 273753813 is 318357372.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 273753813 - 2¹⁰ = 273752789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273753817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45625633 + ... + 45625638.

It is an arithmetic number, because the mean of its divisors is an integer number (91251272).

Almost surely, 2^273753813 is an apocalyptic number.

It is an amenable number.

273753813 is a deficient number, since it is larger than the sum of its proper divisors (91251275).

273753813 is an equidigital number, since it uses as much as digits as its factorization.

273753813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91251274.

The product of its digits is 105840, while the sum is 39.

The square root of 273753813 is about 16545.5073358299. The cubic root of 273753813 is about 649.3119448971.

The spelling of 273753813 in words is "two hundred seventy-three million, seven hundred fifty-three thousand, eight hundred thirteen".