247947353 has 2 divisors, whose sum is σ = 247947354. Its totient is φ = 247947352.

The previous prime is 247947341. The next prime is 247947373. The reversal of 247947353 is 353749742.

247947353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245016409 + 2930944 = 15653^2 + 1712^2 .

It is a cyclic number.

It is not a de Polignac number, because 247947353 - 2⁸ = 247947097 is a prime.

It is a super-2 number, since 2×247947353² = 122955779719413218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247947373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123973676 + 123973677.

It is an arithmetic number, because the mean of its divisors is an integer number (123973677).

Almost surely, 2^247947353 is an apocalyptic number.

It is an amenable number.

247947353 is a deficient number, since it is larger than the sum of its proper divisors (1).

247947353 is an equidigital number, since it uses as much as digits as its factorization.

247947353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 44.

The square root of 247947353 is about 15746.3441153812. The cubic root of 247947353 is about 628.2316691956.

The spelling of 247947353 in words is "two hundred forty-seven million, nine hundred forty-seven thousand, three hundred fifty-three".