272221399 has 4 divisors (see below), whose sum is σ = 284057136. Its totient is φ = 260385664.

The previous prime is 272221393. The next prime is 272221403. The reversal of 272221399 is 993122272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 272221399 - 2²³ = 263832791 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 (272221393) 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, 5917834 + ... + 5917879.

It is an arithmetic number, because the mean of its divisors is an integer number (71014284).

Almost surely, 2^272221399 is an apocalyptic number.

272221399 is a deficient number, since it is larger than the sum of its proper divisors (11835737).

272221399 is a wasteful number, since it uses less digits than its factorization.

272221399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11835736.

The product of its digits is 27216, while the sum is 37.

The square root of 272221399 is about 16499.1332802666. The cubic root of 272221399 is about 648.0981083673.

The spelling of 272221399 in words is "two hundred seventy-two million, two hundred twenty-one thousand, three hundred ninety-nine".