4778693 has 2 divisors, whose sum is σ = 4778694. Its totient is φ = 4778692.

The previous prime is 4778663. The next prime is 4778701. The reversal of 4778693 is 3968774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2879809 + 1898884 = 1697^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 4778693 - 2⁸ = 4778437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4778603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389346 + 2389347.

It is an arithmetic number, because the mean of its divisors is an integer number (2389347).

Almost surely, 2^4778693 is an apocalyptic number.

It is an amenable number.

4778693 is a deficient number, since it is larger than the sum of its proper divisors (1).

4778693 is an equidigital number, since it uses as much as digits as its factorization.

4778693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 4778693 is about 2186.0221865297. The cubic root of 4778693 is about 168.4365653320.

The spelling of 4778693 in words is "four million, seven hundred seventy-eight thousand, six hundred ninety-three".