7965620 has 24 divisors (see below), whose sum is σ = 18015144. Its totient is φ = 2941056.

The previous prime is 7965599. The next prime is 7965623. The reversal of 7965620 is 265697.

It can be written as a sum of positive squares in 4 ways, for example, as 1267876 + 6697744 = 1126^2 + 2588^2 .

It is a super-2 number, since 2×7965620² = 126902203968800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7965623) 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 7 ways as a sum of consecutive naturals, for example, 15059 + ... + 15578.

It is an arithmetic number, because the mean of its divisors is an integer number (750631).

Almost surely, 2^7965620 is an apocalyptic number.

It is an amenable number.

7965620 is an abundant number, since it is smaller than the sum of its proper divisors (10049524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7965620 is a wasteful number, since it uses less digits than its factorization.

7965620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30659 (or 30657 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 7965620 is about 2822.3429982906. The cubic root of 7965620 is about 199.7130886061.

The spelling of 7965620 in words is "seven million, nine hundred sixty-five thousand, six hundred twenty".