272656987 has 4 divisors (see below), whose sum is σ = 273324040. Its totient is φ = 271989936.

The previous prime is 272656961. The next prime is 272656991. The reversal of 272656987 is 789656272.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272656987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272656907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332913 + ... + 333730.

It is an arithmetic number, because the mean of its divisors is an integer number (68331010).

Almost surely, 2^272656987 is an apocalyptic number.

272656987 is a deficient number, since it is larger than the sum of its proper divisors (667053).

272656987 is an equidigital number, since it uses as much as digits as its factorization.

272656987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667052.

The product of its digits is 2540160, while the sum is 52.

The square root of 272656987 is about 16512.3283337027. The cubic root of 272656987 is about 648.4436032719.

The spelling of 272656987 in words is "two hundred seventy-two million, six hundred fifty-six thousand, nine hundred eighty-seven".