247704 has 16 divisors (see below), whose sum is σ = 619320. Its totient is φ = 82560.

The previous prime is 247697. The next prime is 247711. The reversal of 247704 is 407742.

It is an interprime number because it is at equal distance from previous prime (247697) and next prime (247711).

It is a super-2 number, since 2×247704² = 122714543232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 10321 = 247704 / (2 + 4 + 7 + 7 + 0 + 4).

It is a nialpdrome in base 12.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137 + ... + 5184.

2²⁴⁷⁷⁰⁴ is an apocalyptic number.

247704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

247704 is an abundant number, since it is smaller than the sum of its proper divisors (371616).

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

247704 is a wasteful number, since it uses less digits than its factorization.

247704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330 (or 10326 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 247704 is about 497.6987040369. The cubic root of 247704 is about 62.8026071645.

The spelling of 247704 in words is "two hundred forty-seven thousand, seven hundred four", and thus it is an iban number.