247307222 has 8 divisors (see below), whose sum is σ = 377960256. Its totient is φ = 121320472.

The previous prime is 247307219. The next prime is 247307261. The reversal of 247307222 is 222703742.

It is a happy number.

247307222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×247307222² = 122321724106714568, 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166438 + ... + 1166649.

It is an arithmetic number, because the mean of its divisors is an integer number (47245032).

Almost surely, 2^247307222 is an apocalyptic number.

247307222 is a deficient number, since it is larger than the sum of its proper divisors (130653034).

247307222 is a wasteful number, since it uses less digits than its factorization.

247307222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333142.

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

The square root of 247307222 is about 15726.0046419935. The cubic root of 247307222 is about 627.6905635412.

The spelling of 247307222 in words is "two hundred forty-seven million, three hundred seven thousand, two hundred twenty-two".