4778057 has 4 divisors (see below), whose sum is σ = 4782996. Its totient is φ = 4773120.

The previous prime is 4778051. The next prime is 4778077. The reversal of 4778057 is 7508774.

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 can be written as a sum of positive squares in 2 ways, for example, as 1901641 + 2876416 = 1379^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 4778057 - 2⁴ = 4778041 is a prime.

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 4778057.

It is not an unprimeable number, because it can be changed into a prime (4778051) 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, 488 + ... + 3129.

It is an arithmetic number, because the mean of its divisors is an integer number (1195749).

Almost surely, 2^4778057 is an apocalyptic number.

It is an amenable number.

4778057 is a deficient number, since it is larger than the sum of its proper divisors (4939).

4778057 is a wasteful number, since it uses less digits than its factorization.

4778057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 4778057 is about 2185.8767119854. The cubic root of 4778057 is about 168.4290925490.

The spelling of 4778057 in words is "four million, seven hundred seventy-eight thousand, fifty-seven".