8306690 has 32 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 2793024.

The previous prime is 8306687. The next prime is 8306699. The reversal of 8306690 is 966038.

8306690 = 1663² + 1664² + 1665².

It is a happy number.

It is a super-2 number, since 2×8306690² = 138002197512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8306699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2591 + ... + 4829.

It is an arithmetic number, because the mean of its divisors is an integer number (544320).

Almost surely, 2^8306690 is an apocalyptic number.

8306690 is an abundant number, since it is smaller than the sum of its proper divisors (9111550).

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

8306690 is a wasteful number, since it uses less digits than its factorization.

8306690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 8306690 is about 2882.1328907599. The cubic root of 8306690 is about 202.5237689927.

The spelling of 8306690 in words is "eight million, three hundred six thousand, six hundred ninety".