4928381 has 2 divisors, whose sum is σ = 4928382. Its totient is φ = 4928380.

The previous prime is 4928377. The next prime is 4928383. The reversal of 4928381 is 1838294.

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., 4239481 + 688900 = 2059^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 4928381 - 2² = 4928377 is a prime.

It is a super-2 number, since 2×4928381² = 48577878562322, which contains 22 as substring.

Together with 4928383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4928383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2464190 + 2464191.

It is an arithmetic number, because the mean of its divisors is an integer number (2464191).

Almost surely, 2^4928381 is an apocalyptic number.

It is an amenable number.

4928381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4928381 is an equidigital number, since it uses as much as digits as its factorization.

4928381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 4928381 is about 2219.9957207166. The cubic root of 4928381 is about 170.1772200334.

The spelling of 4928381 in words is "four million, nine hundred twenty-eight thousand, three hundred eighty-one".