247287222 has 192 divisors, whose sum is σ = 702720000. Its totient is φ = 64393056.

The previous prime is 247287211. The next prime is 247287239. The reversal of 247287222 is 222782742.

It is a super-2 number, since 2×247287222² = 122301940328954568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3130179 + ... + 3130257.

It is an arithmetic number, because the mean of its divisors is an integer number (3660000).

Almost surely, 2^247287222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247287222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351360000).

247287222 is an abundant number, since it is smaller than the sum of its proper divisors (455432778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247287222 is a wasteful number, since it uses less digits than its factorization.

247287222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 104 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 247287222 is about 15725.3687397148. The cubic root of 247287222 is about 627.6736424156.

The spelling of 247287222 in words is "two hundred forty-seven million, two hundred eighty-seven thousand, two hundred twenty-two".