306696506 has 8 divisors (see below), whose sum is σ = 466346964. Its totient is φ = 151247520.

The previous prime is 306696503. The next prime is 306696521. The reversal of 306696506 is 605696603.

It can be written as a sum of positive squares in 2 ways, for example, as 285305881 + 21390625 = 16891^2 + 4625^2 .

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

It is not an unprimeable number, because it can be changed into a prime (306696503) 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, 1050185 + ... + 1050476.

Almost surely, 2^306696506 is an apocalyptic number.

306696506 is a deficient number, since it is larger than the sum of its proper divisors (159650458).

306696506 is a wasteful number, since it uses less digits than its factorization.

306696506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100736.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 306696506 is about 17512.7526676990. The cubic root of 306696506 is about 674.3772993400.

The spelling of 306696506 in words is "three hundred six million, six hundred ninety-six thousand, five hundred six".