247241729 has 8 divisors (see below), whose sum is σ = 286433280. Its totient is φ = 209018016.

The previous prime is 247241719. The next prime is 247241741. The reversal of 247241729 is 927142742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 247241729 - 2⁸ = 247241473 is a prime.

It is a super-2 number, since 2×247241729² = 122256945117818882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247241692 and 247241701.

It is not an unprimeable number, because it can be changed into a prime (247241719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241409 + ... + 242430.

It is an arithmetic number, because the mean of its divisors is an integer number (35804160).

Almost surely, 2^247241729 is an apocalyptic number.

It is an amenable number.

247241729 is a deficient number, since it is larger than the sum of its proper divisors (39191551).

247241729 is an equidigital number, since it uses as much as digits as its factorization.

247241729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483919.

The product of its digits is 56448, while the sum is 38.

The square root of 247241729 is about 15723.9221888179. The cubic root of 247241729 is about 627.6351493790.

The spelling of 247241729 in words is "two hundred forty-seven million, two hundred forty-one thousand, seven hundred twenty-nine".