8642072 has 8 divisors (see below), whose sum is σ = 16203900. Its totient is φ = 4321032.

The previous prime is 8642063. The next prime is 8642077. The reversal of 8642072 is 2702468.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642077) by changing a digit.

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 as a sum of consecutive naturals, namely, 540122 + ... + 540137.

Almost surely, 2^8642072 is an apocalyptic number.

It is an amenable number.

8642072 is a deficient number, since it is larger than the sum of its proper divisors (7561828).

8642072 is a wasteful number, since it uses less digits than its factorization.

8642072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080265 (or 1080261 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 8642072 is about 2939.7401245688. The cubic root of 8642072 is about 205.2135153927.

The spelling of 8642072 in words is "eight million, six hundred forty-two thousand, seventy-two".