1568397606 has 8 divisors (see below), whose sum is σ = 3136795224. Its totient is φ = 522799200.

The previous prime is 1568397599. The next prime is 1568397613. The reversal of 1568397606 is 6067938651.

It is an interprime number because it is at equal distance from previous prime (1568397599) and next prime (1568397613).

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

1568397606 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130699795 + ... + 130699806.

It is an arithmetic number, because the mean of its divisors is an integer number (392099403).

Almost surely, 2^1568397606 is an apocalyptic number.

1568397606 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.

1568397606 is a wasteful number, since it uses less digits than its factorization.

1568397606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261399606.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 1568397606 is about 39602.9999621241. Note that the first 4 decimals coincide. The cubic root of 1568397606 is about 1161.8553360354.

The spelling of 1568397606 in words is "one billion, five hundred sixty-eight million, three hundred ninety-seven thousand, six hundred six".