247798323 has 12 divisors (see below), whose sum is σ = 376769640. Its totient is φ = 156504096.

The previous prime is 247798321. The next prime is 247798357. The reversal of 247798323 is 323897742.

247798323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 247798323 - 2¹ = 247798321 is a prime.

It is a super-2 number, since 2×247798323² = 122808017763224658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247798321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724386 + ... + 724727.

It is an arithmetic number, because the mean of its divisors is an integer number (31397470).

Almost surely, 2^247798323 is an apocalyptic number.

247798323 is a deficient number, since it is larger than the sum of its proper divisors (128971317).

247798323 is a wasteful number, since it uses less digits than its factorization.

247798323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449138 (or 1449135 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 247798323 is about 15741.6111945379. The cubic root of 247798323 is about 628.1057767043.

The spelling of 247798323 in words is "two hundred forty-seven million, seven hundred ninety-eight thousand, three hundred twenty-three".