7042865 has 4 divisors (see below), whose sum is σ = 8451444. Its totient is φ = 5634288.

The previous prime is 7042843. The next prime is 7042873. The reversal of 7042865 is 5682407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5094049 + 1948816 = 2257^2 + 1396^2 .

It is a cyclic number.

It is not a de Polignac number, because 7042865 - 2⁶ = 7042801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704282 + ... + 704291.

It is an arithmetic number, because the mean of its divisors is an integer number (2112861).

Almost surely, 2^7042865 is an apocalyptic number.

It is an amenable number.

7042865 is a deficient number, since it is larger than the sum of its proper divisors (1408579).

7042865 is a wasteful number, since it uses less digits than its factorization.

7042865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408578.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 7042865 is about 2653.8396711181. The cubic root of 7042865 is about 191.6827896540.

The spelling of 7042865 in words is "seven million, forty-two thousand, eight hundred sixty-five".