4784381 has 4 divisors (see below), whose sum is σ = 5467872. Its totient is φ = 4100892.

The previous prime is 4784341. The next prime is 4784401. The reversal of 4784381 is 1834874.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 4784381 - 2⁶ = 4784317 is a prime.

It is a super-2 number, since 2×4784381² = 45780603106322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4784321) 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, 341735 + ... + 341748.

It is an arithmetic number, because the mean of its divisors is an integer number (1366968).

Almost surely, 2^4784381 is an apocalyptic number.

It is an amenable number.

4784381 is a deficient number, since it is larger than the sum of its proper divisors (683491).

4784381 is an equidigital number, since it uses as much as digits as its factorization.

4784381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683490.

The product of its digits is 21504, while the sum is 35.

The square root of 4784381 is about 2187.3227928223. The cubic root of 4784381 is about 168.5033679292.

The spelling of 4784381 in words is "four million, seven hundred eighty-four thousand, three hundred eighty-one".