7097665 has 4 divisors (see below), whose sum is σ = 8517204. Its totient is φ = 5678128.

The previous prime is 7097647. The next prime is 7097681. The reversal of 7097665 is 5667907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5667907 = 7 ⋅809701.

It can be written as a sum of positive squares in 2 ways, for example, as 3415104 + 3682561 = 1848^2 + 1919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7097665 is a prime.

It is a Duffinian number.

7097665 is a lucky 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, 709762 + ... + 709771.

It is an arithmetic number, because the mean of its divisors is an integer number (2129301).

Almost surely, 2^7097665 is an apocalyptic number.

It is an amenable number.

7097665 is a deficient number, since it is larger than the sum of its proper divisors (1419539).

7097665 is a wasteful number, since it uses less digits than its factorization.

7097665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419538.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 7097665 is about 2664.1443279222. The cubic root of 7097665 is about 192.1786621842.

The spelling of 7097665 in words is "seven million, ninety-seven thousand, six hundred sixty-five".