247672 has 16 divisors (see below), whose sum is σ = 471240. Its totient is φ = 122016.

The previous prime is 247651. The next prime is 247691. The reversal of 247672 is 276742.

It is a super-2 number, since 2×247672² = 122682839168, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁵ + 4⁵ + 6⁶ + 7⁵ + 7⁶ + 2¹⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 247672.

It is a congruent number.

It is an unprimeable number.

247672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478 + ... + 850.

2²⁴⁷⁶⁷² is an apocalyptic number.

It is an amenable number.

247672 is a deficient number, since it is larger than the sum of its proper divisors (223568).

247672 is a wasteful number, since it uses less digits than its factorization.

247672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 458 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 247672 is about 497.6665550346. Note that the first 3 decimals coincide. The cubic root of 247672 is about 62.7999026328.

It can be divided in two parts, 247 and 672, that added together give a palindrome (919).

The spelling of 247672 in words is "two hundred forty-seven thousand, six hundred seventy-two".