272563993 has 4 divisors (see below), whose sum is σ = 293530468. Its totient is φ = 251597520.

The previous prime is 272563979. The next prime is 272564003. The reversal of 272563993 is 399365272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37002889 + 235561104 = 6083^2 + 15348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272563993 is a prime.

It is a super-2 number, since 2×272563993² = 148582260560208098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272563903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10483218 + ... + 10483243.

It is an arithmetic number, because the mean of its divisors is an integer number (73382617).

Almost surely, 2^272563993 is an apocalyptic number.

It is an amenable number.

272563993 is a deficient number, since it is larger than the sum of its proper divisors (20966475).

272563993 is a wasteful number, since it uses less digits than its factorization.

272563993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20966474.

The product of its digits is 612360, while the sum is 46.

The square root of 272563993 is about 16509.5121975181. The cubic root of 272563993 is about 648.3698742226.

The spelling of 272563993 in words is "two hundred seventy-two million, five hundred sixty-three thousand, nine hundred ninety-three".