247897352 has 16 divisors (see below), whose sum is σ = 471355200. Its totient is φ = 122202640.

The previous prime is 247897337. The next prime is 247897361. The reversal of 247897352 is 253798742.

It is a happy number.

It is a super-2 number, since 2×247897352² = 122906194257223808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247897297 and 247897306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217652 + ... + 218787.

It is an arithmetic number, because the mean of its divisors is an integer number (29459700).

Almost surely, 2^247897352 is an apocalyptic number.

It is an amenable number.

247897352 is a deficient number, since it is larger than the sum of its proper divisors (223457848).

247897352 is a wasteful number, since it uses less digits than its factorization.

247897352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436516 (or 436512 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 247897352 is about 15744.7563334591. The cubic root of 247897352 is about 628.1894366772.

The spelling of 247897352 in words is "two hundred forty-seven million, eight hundred ninety-seven thousand, three hundred fifty-two".