4379643 has 8 divisors (see below), whose sum is σ = 6488400. Its totient is φ = 2919744.

The previous prime is 4379623. The next prime is 4379677. The reversal of 4379643 is 3469734.

4379643 is a `hidden beast` number, since 4 + 3 + 7 + 9 + 643 = 666.

It is not a de Polignac number, because 4379643 - 2⁵ = 4379611 is a prime.

4379643 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4379598 and 4379607.

It is not an unprimeable number, because it can be changed into a prime (4379603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81078 + ... + 81131.

It is an arithmetic number, because the mean of its divisors is an integer number (811050).

Almost surely, 2^4379643 is an apocalyptic number.

4379643 is a deficient number, since it is larger than the sum of its proper divisors (2108757).

4379643 is a wasteful number, since it uses less digits than its factorization.

4379643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162218 (or 162212 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 4379643 is about 2092.7596613085. The cubic root of 4379643 is about 163.6111524291.

Subtracting from 4379643 its reverse (3469734), we obtain a palindrome (909909).

The spelling of 4379643 in words is "four million, three hundred seventy-nine thousand, six hundred forty-three".