7685444 has 18 divisors (see below), whose sum is σ = 14564970. Its totient is φ = 3546816.

The previous prime is 7685437. The next prime is 7685459. The reversal of 7685444 is 4445867.

It can be written as a sum of positive squares in 3 ways, for example, as 12544 + 7672900 = 112^2 + 2770^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7685398 and 7685407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5009 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (809165).

Almost surely, 2^7685444 is an apocalyptic number.

It is an amenable number.

7685444 is a deficient number, since it is larger than the sum of its proper divisors (6879526).

7685444 is a wasteful number, since it uses less digits than its factorization.

7685444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11399 (or 11384 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 7685444 is about 2772.2633352551. The cubic root of 7685444 is about 197.3435731944.

The spelling of 7685444 in words is "seven million, six hundred eighty-five thousand, four hundred forty-four".