247223673 has 12 divisors (see below), whose sum is σ = 378107028. Its totient is φ = 155120640.

The previous prime is 247223671. The next prime is 247223689. The reversal of 247223673 is 376322742.

It can be written as a sum of positive squares in 2 ways, for example, as 230796864 + 16426809 = 15192^2 + 4053^2 .

It is not a de Polignac number, because 247223673 - 2¹ = 247223671 is a prime.

It is a super-2 number, since 2×247223673² = 122239088983221858, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (247223671) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 807768 + ... + 808073.

It is an arithmetic number, because the mean of its divisors is an integer number (31508919).

Almost surely, 2^247223673 is an apocalyptic number.

It is an amenable number.

247223673 is a deficient number, since it is larger than the sum of its proper divisors (130883355).

247223673 is a wasteful number, since it uses less digits than its factorization.

247223673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615864 (or 1615861 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 247223673 is about 15723.3480213344. The cubic root of 247223673 is about 627.6198703291.

The spelling of 247223673 in words is "two hundred forty-seven million, two hundred twenty-three thousand, six hundred seventy-three".