247730470 has 64 divisors (see below), whose sum is σ = 518555520. Its totient is φ = 84446208.

The previous prime is 247730459. The next prime is 247730479. The reversal of 247730470 is 74037742.

It is a happy number.

247730470 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247730470² = 122740771532841800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247730479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85282 + ... + 88138.

It is an arithmetic number, because the mean of its divisors is an integer number (8102430).

Almost surely, 2^247730470 is an apocalyptic number.

247730470 is an abundant number, since it is smaller than the sum of its proper divisors (270825050).

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

247730470 is a wasteful number, since it uses less digits than its factorization.

247730470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 247730470 is about 15739.4558355745. The cubic root of 247730470 is about 628.0484414335.

The spelling of 247730470 in words is "two hundred forty-seven million, seven hundred thirty thousand, four hundred seventy".