4993381 has 4 divisors (see below), whose sum is σ = 5002092. Its totient is φ = 4984672.

The previous prime is 4993379. The next prime is 4993397. The reversal of 4993381 is 1833994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 933156 + 4060225 = 966^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 4993381 - 2¹ = 4993379 is a prime.

It is a super-2 number, since 2×4993381² = 49867707622322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4993381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4993321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3430 + ... + 4663.

It is an arithmetic number, because the mean of its divisors is an integer number (1250523).

Almost surely, 2^4993381 is an apocalyptic number.

It is an amenable number.

4993381 is a deficient number, since it is larger than the sum of its proper divisors (8711).

4993381 is an equidigital number, since it uses as much as digits as its factorization.

4993381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8710.

The product of its digits is 23328, while the sum is 37.

The square root of 4993381 is about 2234.5874339573. The cubic root of 4993381 is about 170.9221058085.

The spelling of 4993381 in words is "four million, nine hundred ninety-three thousand, three hundred eighty-one".