4664381 has 2 divisors, whose sum is σ = 4664382. Its totient is φ = 4664380.

The previous prime is 4664357. The next prime is 4664393. The reversal of 4664381 is 1834664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 1020100 = 1909^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 4664381 - 2²² = 470077 is a prime.

It is a super-2 number, since 2×4664381² = 43512900226322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4664311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332190 + 2332191.

It is an arithmetic number, because the mean of its divisors is an integer number (2332191).

Almost surely, 2^4664381 is an apocalyptic number.

It is an amenable number.

4664381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4664381 is an equidigital number, since it uses as much as digits as its factorization.

4664381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 32.

The square root of 4664381 is about 2159.7178056404. The cubic root of 4664381 is about 167.0826440244.

The spelling of 4664381 in words is "four million, six hundred sixty-four thousand, three hundred eighty-one".