690533306 has 16 divisors (see below), whose sum is σ = 1063977984. Its totient is φ = 335959344.

The previous prime is 690533303. The next prime is 690533329. The reversal of 690533306 is 603335096.

690533306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (690533303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4970 + ... + 37493.

It is an arithmetic number, because the mean of its divisors is an integer number (66498624).

Almost surely, 2^690533306 is an apocalyptic number.

690533306 is a deficient number, since it is larger than the sum of its proper divisors (373444678).

690533306 is a wasteful number, since it uses less digits than its factorization.

690533306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42685.

The product of its (nonzero) digits is 43740, while the sum is 35.

The square root of 690533306 is about 26278.0004186011. Note that the first 3 decimals coincide. The cubic root of 690533306 is about 883.8831948820.

The spelling of 690533306 in words is "six hundred ninety million, five hundred thirty-three thousand, three hundred six".