507666 has 16 divisors (see below), whose sum is σ = 1022688. Its totient is φ = 168000.

The previous prime is 507641. The next prime is 507667. The reversal of 507666 is 666705.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 507666.

It is not an unprimeable number, because it can be changed into a prime (507667) by changing a digit.

507666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066 + ... + 1466.

It is an arithmetic number, because the mean of its divisors is an integer number (63918).

2⁵⁰⁷⁶⁶⁶ is an apocalyptic number.

507666 is an abundant number, since it is smaller than the sum of its proper divisors (515022).

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

507666 is a wasteful number, since it uses less digits than its factorization.

507666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 507666 is about 712.5068420724. The cubic root of 507666 is about 79.7736309004.

The spelling of 507666 in words is "five hundred seven thousand, six hundred sixty-six".