272816989 has 4 divisors (see below), whose sum is σ = 273438880. Its totient is φ = 272195100.

The previous prime is 272816959. The next prime is 272817031. The reversal of 272816989 is 989618272.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272816989 is a prime.

It is a super-2 number, since 2×272816989² = 148858218974052242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272816939) 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, 310287 + ... + 311164.

It is an arithmetic number, because the mean of its divisors is an integer number (68359720).

Almost surely, 2^272816989 is an apocalyptic number.

It is an amenable number.

272816989 is a deficient number, since it is larger than the sum of its proper divisors (621891).

272816989 is an equidigital number, since it uses as much as digits as its factorization.

272816989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621890.

The product of its digits is 870912, while the sum is 52.

The square root of 272816989 is about 16517.1725485932. The cubic root of 272816989 is about 648.5704194918.

The spelling of 272816989 in words is "two hundred seventy-two million, eight hundred sixteen thousand, nine hundred eighty-nine".