665476 has 12 divisors (see below), whose sum is σ = 1331008. Its totient is φ = 285192.

The previous prime is 665447. The next prime is 665479. The reversal of 665476 is 674566.

665476 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (665479) 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, 11856 + ... + 11911.

2⁶⁶⁵⁴⁷⁶ is an apocalyptic number.

It is an amenable number.

665476 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.

665476 is a wasteful number, since it uses less digits than its factorization.

665476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23778 (or 23776 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 665476 is about 815.7671236327. The cubic root of 665476 is about 87.3060083243.

The spelling of 665476 in words is "six hundred sixty-five thousand, four hundred seventy-six".