7690686 has 8 divisors (see below), whose sum is σ = 15381384. Its totient is φ = 2563560.

The previous prime is 7690663. The next prime is 7690691. The reversal of 7690686 is 6860967.

It is a happy number.

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

7690686 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640885 + ... + 640896.

It is an arithmetic number, because the mean of its divisors is an integer number (1922673).

Almost surely, 2^7690686 is an apocalyptic number.

7690686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7690686 is a wasteful number, since it uses less digits than its factorization.

7690686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281786.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 7690686 is about 2773.2086109775. The cubic root of 7690686 is about 197.3884302820.

The spelling of 7690686 in words is "seven million, six hundred ninety thousand, six hundred eighty-six".