4780566 has 32 divisors (see below), whose sum is σ = 12142080. Its totient is φ = 1365768.

The previous prime is 4780561. The next prime is 4780597. The reversal of 4780566 is 6650874.

It is a happy number.

It is a super-2 number, since 2×4780566² = 45707622560712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4780566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5946 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (379440).

Almost surely, 2^4780566 is an apocalyptic number.

4780566 is an abundant number, since it is smaller than the sum of its proper divisors (7361514).

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

4780566 is a wasteful number, since it uses less digits than its factorization.

4780566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12665 (or 12659 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 4780566 is about 2186.4505482631. The cubic root of 4780566 is about 168.4585685924.

The spelling of 4780566 in words is "four million, seven hundred eighty thousand, five hundred sixty-six".