7685420 has 24 divisors (see below), whose sum is σ = 16254000. Its totient is φ = 3052352.

The previous prime is 7685401. The next prime is 7685423. The reversal of 7685420 is 245867.

It is not an unprimeable number, because it can be changed into a prime (7685423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1691 + ... + 4269.

It is an arithmetic number, because the mean of its divisors is an integer number (677250).

Almost surely, 2^7685420 is an apocalyptic number.

It is an amenable number.

7685420 is an abundant number, since it is smaller than the sum of its proper divisors (8568580).

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

7685420 is a wasteful number, since it uses less digits than its factorization.

7685420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 7685420 is about 2772.2590066586. The cubic root of 7685420 is about 197.3433677736.

The spelling of 7685420 in words is "seven million, six hundred eighty-five thousand, four hundred twenty".