8683690 has 8 divisors (see below), whose sum is σ = 15630660. Its totient is φ = 3473472.

The previous prime is 8683687. The next prime is 8683691. The reversal of 8683690 is 963868.

It can be written as a sum of positive squares in 2 ways, for example, as 7502121 + 1181569 = 2739^2 + 1087^2 .

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

It is a super-2 number, since 2×8683690² = 150812944032200, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8683691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434175 + ... + 434194.

Almost surely, 2^8683690 is an apocalyptic number.

8683690 is a deficient number, since it is larger than the sum of its proper divisors (6946970).

8683690 is a wasteful number, since it uses less digits than its factorization.

8683690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868376.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 8683690 is about 2946.8101397952. The cubic root of 8683690 is about 205.5424065393.

The spelling of 8683690 in words is "eight million, six hundred eighty-three thousand, six hundred ninety".