7685642 has 8 divisors (see below), whose sum is σ = 11570916. Its totient is φ = 3828672.

The previous prime is 7685641. The next prime is 7685647. The reversal of 7685642 is 2465867.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7392961 + 292681 = 2719^2 + 541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7685596 and 7685605.

It is not an unprimeable number, because it can be changed into a prime (7685641) 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, 6383 + ... + 7490.

Almost surely, 2^7685642 is an apocalyptic number.

7685642 is a deficient number, since it is larger than the sum of its proper divisors (3885274).

7685642 is a wasteful number, since it uses less digits than its factorization.

7685642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14152.

The product of its digits is 80640, while the sum is 38.

The square root of 7685642 is about 2772.2990459184. The cubic root of 7685642 is about 197.3452678999.

The spelling of 7685642 in words is "seven million, six hundred eighty-five thousand, six hundred forty-two".