272892721 has 8 divisors (see below), whose sum is σ = 298266624. Its totient is φ = 248554560.

The previous prime is 272892713. The next prime is 272892733. The reversal of 272892721 is 127298272.

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

It is a cyclic number.

It is not a de Polignac number, because 272892721 - 2³ = 272892713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (272892791) 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, 258385 + ... + 259438.

It is an arithmetic number, because the mean of its divisors is an integer number (37283328).

Almost surely, 2^272892721 is an apocalyptic number.

It is an amenable number.

272892721 is a deficient number, since it is larger than the sum of its proper divisors (25373903).

272892721 is a wasteful number, since it uses less digits than its factorization.

272892721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517871.

The product of its digits is 56448, while the sum is 40.

The square root of 272892721 is about 16519.4649126417. The cubic root of 272892721 is about 648.6304267406.

The spelling of 272892721 in words is "two hundred seventy-two million, eight hundred ninety-two thousand, seven hundred twenty-one".