665332627 has 4 divisors (see below), whose sum is σ = 665390440. Its totient is φ = 665274816.

The previous prime is 665332609. The next prime is 665332637. The reversal of 665332627 is 726233566.

It is a happy number.

665332627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-665332627 is a prime.

It is a super-2 number, since 2×665332627² = 885335009101442258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 665332627.

It is not an unprimeable number, because it can be changed into a prime (665332637) 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, 5118 + ... + 36835.

It is an arithmetic number, because the mean of its divisors is an integer number (166347610).

Almost surely, 2^665332627 is an apocalyptic number.

665332627 is a deficient number, since it is larger than the sum of its proper divisors (57813).

665332627 is a wasteful number, since it uses less digits than its factorization.

665332627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57812.

The product of its digits is 272160, while the sum is 40.

The square root of 665332627 is about 25794.0424710823. The cubic root of 665332627 is about 872.9973801382.

The spelling of 665332627 in words is "six hundred sixty-five million, three hundred thirty-two thousand, six hundred twenty-seven".