273713721 has 8 divisors (see below), whose sum is σ = 366518880. Its totient is φ = 181692192.

The previous prime is 273713707. The next prime is 273713761. The reversal of 273713721 is 127317372.

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

It is not a de Polignac number, because 273713721 - 2⁵ = 273713689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (273713701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195091 + ... + 196488.

It is an arithmetic number, because the mean of its divisors is an integer number (45814860).

Almost surely, 2^273713721 is an apocalyptic number.

It is an amenable number.

273713721 is a deficient number, since it is larger than the sum of its proper divisors (92805159).

273713721 is a wasteful number, since it uses less digits than its factorization.

273713721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391815.

The product of its digits is 12348, while the sum is 33.

The square root of 273713721 is about 16544.2957239044. The cubic root of 273713721 is about 649.2802455086.

The spelling of 273713721 in words is "two hundred seventy-three million, seven hundred thirteen thousand, seven hundred twenty-one".