7613665 has 4 divisors (see below), whose sum is σ = 9136404. Its totient is φ = 6090928.

The previous prime is 7613653. The next prime is 7613677. The reversal of 7613665 is 5663167.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5663167 = 1999 ⋅2833.

It is an interprime number because it is at equal distance from previous prime (7613653) and next prime (7613677).

It can be written as a sum of positive squares in 2 ways, for example, as 817216 + 6796449 = 904^2 + 2607^2 .

It is a cyclic number.

It is not a de Polignac number, because 7613665 - 2⁹ = 7613153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7613665.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 761362 + ... + 761371.

It is an arithmetic number, because the mean of its divisors is an integer number (2284101).

Almost surely, 2^7613665 is an apocalyptic number.

It is an amenable number.

7613665 is a deficient number, since it is larger than the sum of its proper divisors (1522739).

7613665 is a wasteful number, since it uses less digits than its factorization.

7613665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522738.

The product of its digits is 22680, while the sum is 34.

The square root of 7613665 is about 2759.2870455971. The cubic root of 7613665 is about 196.7272803048.

The spelling of 7613665 in words is "seven million, six hundred thirteen thousand, six hundred sixty-five".