247392 has 36 divisors (see below), whose sum is σ = 704340. Its totient is φ = 82368.

The previous prime is 247391. The next prime is 247393. The reversal of 247392 is 293742.

It is an interprime number because it is at equal distance from previous prime (247391) and next prime (247393).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×247392² = 122405603328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 12.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247392.

It is not an unprimeable number, because it can be changed into a prime (247391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142 + ... + 717.

It is an arithmetic number, because the mean of its divisors is an integer number (19565).

2²⁴⁷³⁹² is an apocalyptic number.

It is an amenable number.

247392 is an abundant number, since it is smaller than the sum of its proper divisors (456948).

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

247392 is a wasteful number, since it uses less digits than its factorization.

247392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 864 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 247392 is about 497.3851626255. The cubic root of 247392 is about 62.7762280373.

The spelling of 247392 in words is "two hundred forty-seven thousand, three hundred ninety-two".