4688381 has 4 divisors (see below), whose sum is σ = 4815132. Its totient is φ = 4561632.

The previous prime is 4688377. The next prime is 4688393. The reversal of 4688381 is 1838864.

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 4239481 + 448900 = 2059^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 4688381 - 2² = 4688377 is a prime.

It is a super-2 number, since 2×4688381² = 43961832802322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4688351) 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, 63320 + ... + 63393.

It is an arithmetic number, because the mean of its divisors is an integer number (1203783).

Almost surely, 2^4688381 is an apocalyptic number.

It is an amenable number.

4688381 is a deficient number, since it is larger than the sum of its proper divisors (126751).

4688381 is a wasteful number, since it uses less digits than its factorization.

4688381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126750.

The product of its digits is 36864, while the sum is 38.

The square root of 4688381 is about 2165.2669581370. The cubic root of 4688381 is about 167.3687216714.

It can be divided in two parts, 46883 and 81, that added together give a palindrome (46964).

The spelling of 4688381 in words is "four million, six hundred eighty-eight thousand, three hundred eighty-one".