4878381 has 4 divisors (see below), whose sum is σ = 6504512. Its totient is φ = 3252252.

The previous prime is 4878373. The next prime is 4878397. The reversal of 4878381 is 1838784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4878381 - 2³ = 4878373 is a prime.

It is a super-2 number, since 2×4878381² = 47597202362322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4878301) 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, 813061 + ... + 813066.

It is an arithmetic number, because the mean of its divisors is an integer number (1626128).

Almost surely, 2^4878381 is an apocalyptic number.

It is an amenable number.

4878381 is a deficient number, since it is larger than the sum of its proper divisors (1626131).

4878381 is a wasteful number, since it uses less digits than its factorization.

4878381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626130.

The product of its digits is 43008, while the sum is 39.

The square root of 4878381 is about 2208.7057296073. The cubic root of 4878381 is about 169.5997620183.

The spelling of 4878381 in words is "four million, eight hundred seventy-eight thousand, three hundred eighty-one".