7001865 has 24 divisors (see below), whose sum is σ = 13071240. Its totient is φ = 3446784.

The previous prime is 7001851. The next prime is 7001879. The reversal of 7001865 is 5681007.

It is an interprime number because it is at equal distance from previous prime (7001851) and next prime (7001879).

It can be written as a sum of positive squares in 4 ways, for example, as 95481 + 6906384 = 309^2 + 2628^2 .

It is not a de Polignac number, because 7001865 - 2¹⁰ = 7000841 is a prime.

It is a super-2 number, since 2×7001865² = 98052226956450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5400 + ... + 6569.

It is an arithmetic number, because the mean of its divisors is an integer number (544635).

Almost surely, 2^7001865 is an apocalyptic number.

It is an amenable number.

7001865 is a deficient number, since it is larger than the sum of its proper divisors (6069375).

7001865 is a wasteful number, since it uses less digits than its factorization.

7001865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11993 (or 11990 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 7001865 is about 2646.1037394630. The cubic root of 7001865 is about 191.3101054195.

The spelling of 7001865 in words is "seven million, one thousand, eight hundred sixty-five".