7442865 has 12 divisors (see below), whose sum is σ = 12901044. Its totient is φ = 3969504.

The previous prime is 7442863. The next prime is 7442867. The reversal of 7442865 is 5682447.

It is an interprime number because it is at equal distance from previous prime (7442863) and next prime (7442867).

It can be written as a sum of positive squares in 2 ways, for example, as 848241 + 6594624 = 921^2 + 2568^2 .

It is not a de Polignac number, because 7442865 - 2¹ = 7442863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7442863) 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 in 11 ways as a sum of consecutive naturals, for example, 82654 + ... + 82743.

It is an arithmetic number, because the mean of its divisors is an integer number (1075087).

Almost surely, 2^7442865 is an apocalyptic number.

It is an amenable number.

7442865 is a deficient number, since it is larger than the sum of its proper divisors (5458179).

7442865 is a wasteful number, since it uses less digits than its factorization.

7442865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165408 (or 165405 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 7442865 is about 2728.1614688284. The cubic root of 7442865 is about 195.2450567993.

The spelling of 7442865 in words is "seven million, four hundred forty-two thousand, eight hundred sixty-five".