4803781 has 2 divisors, whose sum is σ = 4803782. Its totient is φ = 4803780.

The previous prime is 4803769. The next prime is 4803787. The reversal of 4803781 is 1873084.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4691556 + 112225 = 2166^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 4803781 - 2⁵ = 4803749 is a prime.

It is a super-2 number, since 2×4803781² = 46152623791922, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

4803781 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4803787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2401890 + 2401891.

It is an arithmetic number, because the mean of its divisors is an integer number (2401891).

Almost surely, 2^4803781 is an apocalyptic number.

It is an amenable number.

4803781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4803781 is an equidigital number, since it uses as much as digits as its factorization.

4803781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 4803781 is about 2191.7529514067. The cubic root of 4803781 is about 168.7308133650.

The spelling of 4803781 in words is "four million, eight hundred three thousand, seven hundred eighty-one".