247972 has 12 divisors (see below), whose sum is σ = 443520. Its totient is φ = 121256.

The previous prime is 247957. The next prime is 247991. The reversal of 247972 is 279742.

It is a happy number.

It is a super-2 number, since 2×247972² = 122980225568, which contains 22 as substring.

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, 472 + ... + 847.

It is an arithmetic number, because the mean of its divisors is an integer number (36960).

2²⁴⁷⁹⁷² is an apocalyptic number.

It is an amenable number.

247972 is a deficient number, since it is larger than the sum of its proper divisors (195548).

247972 is a wasteful number, since it uses less digits than its factorization.

247972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1368 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 247972 is about 497.9678704495. The cubic root of 247972 is about 62.8252484788.

It can be divided in two parts, 24797 and 2, that multiplied together give a palindrome (49594).

The spelling of 247972 in words is "two hundred forty-seven thousand, nine hundred seventy-two".