8427724 has 6 divisors (see below), whose sum is σ = 14748524. Its totient is φ = 4213860.

The previous prime is 8427721. The next prime is 8427739. The reversal of 8427724 is 4277248.

It is a self number, because there is not a number n which added to its sum of digits gives 8427724.

It is not an unprimeable number, because it can be changed into a prime (8427721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053462 + ... + 1053469.

Almost surely, 2^8427724 is an apocalyptic number.

It is an amenable number.

8427724 is a deficient number, since it is larger than the sum of its proper divisors (6320800).

8427724 is a wasteful number, since it uses less digits than its factorization.

8427724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106935 (or 2106933 counting only the distinct ones).

The product of its digits is 25088, while the sum is 34.

The square root of 8427724 is about 2903.0542537128. The cubic root of 8427724 is about 203.5026652393.

The spelling of 8427724 in words is "eight million, four hundred twenty-seven thousand, seven hundred twenty-four".