7658965 has 4 divisors (see below), whose sum is σ = 9190764. Its totient is φ = 6127168.

The previous prime is 7658951. The next prime is 7658969. The reversal of 7658965 is 5698567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5698567 = 7 ⋅814081.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 6185169 = 1214^2 + 2487^2 .

It is a cyclic number.

It is not a de Polignac number, because 7658965 - 2⁵ = 7658933 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7658969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765892 + ... + 765901.

It is an arithmetic number, because the mean of its divisors is an integer number (2297691).

Almost surely, 2^7658965 is an apocalyptic number.

It is an amenable number.

7658965 is a deficient number, since it is larger than the sum of its proper divisors (1531799).

7658965 is a wasteful number, since it uses less digits than its factorization.

7658965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531798.

The product of its digits is 453600, while the sum is 46.

The square root of 7658965 is about 2767.4835139527. The cubic root of 7658965 is about 197.1166735662.

It can be divided in two parts, 765 and 8965, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 7658965 in words is "seven million, six hundred fifty-eight thousand, nine hundred sixty-five".