7165649 has 4 divisors (see below), whose sum is σ = 7332336. Its totient is φ = 6998964.

The previous prime is 7165633. The next prime is 7165661. The reversal of 7165649 is 9465617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7165649 - 2⁴ = 7165633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7165699) 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 3 ways as a sum of consecutive naturals, for example, 83279 + ... + 83364.

It is an arithmetic number, because the mean of its divisors is an integer number (1833084).

Almost surely, 2^7165649 is an apocalyptic number.

It is an amenable number.

7165649 is a deficient number, since it is larger than the sum of its proper divisors (166687).

7165649 is a wasteful number, since it uses less digits than its factorization.

7165649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166686.

The product of its digits is 45360, while the sum is 38.

The square root of 7165649 is about 2676.8729891424. The cubic root of 7165649 is about 192.7902990505.

Subtracting 7165649 from its reverse (9465617), we obtain a cube (2299968 = 132³).

The spelling of 7165649 in words is "seven million, one hundred sixty-five thousand, six hundred forty-nine".