4780866 has 16 divisors (see below), whose sum is σ = 9583488. Its totient is φ = 1590000.

The previous prime is 4780861. The next prime is 4780871. The reversal of 4780866 is 6680874.

It is an interprime number because it is at equal distance from previous prime (4780861) and next prime (4780871).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4780861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3976 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (598968).

Almost surely, 2^4780866 is an apocalyptic number.

4780866 is an abundant number, since it is smaller than the sum of its proper divisors (4802622).

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

4780866 is a wasteful number, since it uses less digits than its factorization.

4780866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 4780866 is about 2186.5191515283. The cubic root of 4780866 is about 168.4620923392.

It can be divided in two parts, 47808 and 66, that added together give a palindrome (47874).

The spelling of 4780866 in words is "four million, seven hundred eighty thousand, eight hundred sixty-six".