4641781 has 2 divisors, whose sum is σ = 4641782. Its totient is φ = 4641780.

The previous prime is 4641773. The next prime is 4641787. The reversal of 4641781 is 1871464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4165681 + 476100 = 2041^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 4641781 - 2³ = 4641773 is a prime.

It is a super-2 number, since 2×4641781² = 43092261703922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4641787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320890 + 2320891.

It is an arithmetic number, because the mean of its divisors is an integer number (2320891).

Almost surely, 2^4641781 is an apocalyptic number.

It is an amenable number.

4641781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4641781 is an equidigital number, since it uses as much as digits as its factorization.

4641781 is an evil number, because the sum of its binary digits is even.

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

The square root of 4641781 is about 2154.4792874382. The cubic root of 4641781 is about 166.8123557222.

The spelling of 4641781 in words is "four million, six hundred forty-one thousand, seven hundred eighty-one".