247247382 has 16 divisors (see below), whose sum is σ = 510446592. Its totient is φ = 79757160.

The previous prime is 247247381. The next prime is 247247393. The reversal of 247247382 is 283742742.

247247382 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 2×247247382² = 122262535811707848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247247382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247247381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664458 + ... + 664829.

It is an arithmetic number, because the mean of its divisors is an integer number (31902912).

Almost surely, 2^247247382 is an apocalyptic number.

247247382 is an abundant number, since it is smaller than the sum of its proper divisors (263199210).

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

247247382 is a wasteful number, since it uses less digits than its factorization.

247247382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329323.

The product of its digits is 150528, while the sum is 39.

The square root of 247247382 is about 15724.1019457392. The cubic root of 247247382 is about 627.6399328143.

The spelling of 247247382 in words is "two hundred forty-seven million, two hundred forty-seven thousand, three hundred eighty-two".