247223361 has 16 divisors (see below), whose sum is σ = 410969088. Its totient is φ = 128427600.

The previous prime is 247223359. The next prime is 247223387. The reversal of 247223361 is 163322742.

It is not a de Polignac number, because 247223361 - 2¹ = 247223359 is a prime.

It is a super-2 number, since 2×247223361² = 122238780448272642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247223341) 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 15 ways as a sum of consecutive naturals, for example, 534885 + ... + 535346.

It is an arithmetic number, because the mean of its divisors is an integer number (25685568).

Almost surely, 2^247223361 is an apocalyptic number.

247223361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

247223361 is a deficient number, since it is larger than the sum of its proper divisors (163745727).

247223361 is a wasteful number, since it uses less digits than its factorization.

247223361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070252.

The product of its digits is 12096, while the sum is 30.

The square root of 247223361 is about 15723.3380997802. The cubic root of 247223361 is about 627.6196063071.

The spelling of 247223361 in words is "two hundred forty-seven million, two hundred twenty-three thousand, three hundred sixty-one".