247320272 has 20 divisors (see below), whose sum is σ = 480551460. Its totient is φ = 123307008.

The previous prime is 247320257. The next prime is 247320289. The reversal of 247320272 is 272023742.

It is a happy number.

247320272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158659216 + 88661056 = 12596^2 + 9416^2 .

It is a super-2 number, since 2×247320272² = 122334633884307968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16247 + ... + 27542.

It is an arithmetic number, because the mean of its divisors is an integer number (24027573).

Almost surely, 2^247320272 is an apocalyptic number.

It is an amenable number.

247320272 is a deficient number, since it is larger than the sum of its proper divisors (233231188).

247320272 is a wasteful number, since it uses less digits than its factorization.

247320272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44150 (or 44144 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 247320272 is about 15726.4195543677. The cubic root of 247320272 is about 627.7016040838.

The spelling of 247320272 in words is "two hundred forty-seven million, three hundred twenty thousand, two hundred seventy-two".