247483872 has 72 divisors (see below), whose sum is σ = 720982080. Its totient is φ = 80478720.

The previous prime is 247483867. The next prime is 247483897. The reversal of 247483872 is 278384742.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×247483872² = 122496533800224768, 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 11 ways as a sum of consecutive naturals, for example, 1329 + ... + 22287.

It is an arithmetic number, because the mean of its divisors is an integer number (10013640).

Almost surely, 2^247483872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247483872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360491040).

247483872 is an abundant number, since it is smaller than the sum of its proper divisors (473498208).

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

247483872 is a wasteful number, since it uses less digits than its factorization.

247483872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21016 (or 21005 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 247483872 is about 15731.6201327136. The cubic root of 247483872 is about 627.8399797841.

The spelling of 247483872 in words is "two hundred forty-seven million, four hundred eighty-three thousand, eight hundred seventy-two".