247706072 has 16 divisors (see below), whose sum is σ = 472321800. Its totient is φ = 121753600.

The previous prime is 247706033. The next prime is 247706077. The reversal of 247706072 is 270607742.

It is a super-2 number, since 2×247706072² = 122716596211338368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247706077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261929 + ... + 262872.

Almost surely, 2^247706072 is an apocalyptic number.

It is an amenable number.

247706072 is a deficient number, since it is larger than the sum of its proper divisors (224615728).

247706072 is a wasteful number, since it uses less digits than its factorization.

247706072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524866 (or 524862 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 247706072 is about 15738.6807579289. The cubic root of 247706072 is about 628.0278227494.

The spelling of 247706072 in words is "two hundred forty-seven million, seven hundred six thousand, seventy-two".