8742015 has 12 divisors (see below), whose sum is σ = 15152904. Its totient is φ = 4662384.

The previous prime is 8742011. The next prime is 8742037. The reversal of 8742015 is 5102478.

It is not a de Polignac number, because 8742015 - 2² = 8742011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8742015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97089 + ... + 97178.

It is an arithmetic number, because the mean of its divisors is an integer number (1262742).

Almost surely, 2^8742015 is an apocalyptic number.

8742015 is a deficient number, since it is larger than the sum of its proper divisors (6410889).

8742015 is a wasteful number, since it uses less digits than its factorization.

8742015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194278 (or 194275 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 8742015 is about 2956.6898721374. The cubic root of 8742015 is about 206.0015631264.

The spelling of 8742015 in words is "eight million, seven hundred forty-two thousand, fifteen".