247975424 has 20 divisors (see below), whose sum is σ = 495467544. Its totient is φ = 123987456.

The previous prime is 247975423. The next prime is 247975451. The reversal of 247975424 is 424579742.

It is a super-2 number, since 2×247975424² = 122983621815959552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247975423) by changing a digit.

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 as a sum of consecutive naturals, namely, 241652 + ... + 242675.

Almost surely, 2^247975424 is an apocalyptic number.

It is an amenable number.

247975424 is a deficient number, since it is larger than the sum of its proper divisors (247492120).

247975424 is an frugal number, since it uses more digits than its factorization.

247975424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484345 (or 484329 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The square root of 247975424 is about 15747.2354399113. The cubic root of 247975424 is about 628.2553764134.

The spelling of 247975424 in words is "two hundred forty-seven million, nine hundred seventy-five thousand, four hundred twenty-four".