272661705 has 24 divisors (see below), whose sum is σ = 476024640. Its totient is φ = 144370080.

The previous prime is 272661689. The next prime is 272661749. The reversal of 272661705 is 507166272.

It is not a de Polignac number, because 272661705 - 2⁴ = 272661689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 272661705.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15541 + ... + 28050.

It is an arithmetic number, because the mean of its divisors is an integer number (19834360).

Almost surely, 2^272661705 is an apocalyptic number.

It is an amenable number.

272661705 is a deficient number, since it is larger than the sum of its proper divisors (203362935).

272661705 is a wasteful number, since it uses less digits than its factorization.

272661705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43741 (or 43738 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 272661705 is about 16512.4711960385. The cubic root of 272661705 is about 648.4473434283.

The spelling of 272661705 in words is "two hundred seventy-two million, six hundred sixty-one thousand, seven hundred five".