272706643 has 16 divisors (see below), whose sum is σ = 304694784. Its totient is φ = 241948960.

The previous prime is 272706631. The next prime is 272706649. The reversal of 272706643 is 346607272.

It is a happy number.

It is not a de Polignac number, because 272706643 - 2¹³ = 272698451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272706649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287496 + ... + 288442.

It is an arithmetic number, because the mean of its divisors is an integer number (19043424).

Almost surely, 2^272706643 is an apocalyptic number.

272706643 is a deficient number, since it is larger than the sum of its proper divisors (31988141).

272706643 is a wasteful number, since it uses less digits than its factorization.

272706643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 272706643 is about 16513.8318690727. The cubic root of 272706643 is about 648.4829655019.

The spelling of 272706643 in words is "two hundred seventy-two million, seven hundred six thousand, six hundred forty-three".