4656439 has 4 divisors (see below), whose sum is σ = 4663480. Its totient is φ = 4649400.

The previous prime is 4656409. The next prime is 4656467. The reversal of 4656439 is 9346564.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4656439 - 2⁹ = 4655927 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4³ + 6 + 5⁹ + 6⁴ + 4¹⁰ + 3¹³ + 9⁵ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4656398 and 4656407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4656409) 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, 2412 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (1165870).

Almost surely, 2^4656439 is an apocalyptic number.

4656439 is a deficient number, since it is larger than the sum of its proper divisors (7041).

4656439 is an equidigital number, since it uses as much as digits as its factorization.

4656439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040.

The product of its digits is 77760, while the sum is 37.

The square root of 4656439 is about 2157.8783561638. The cubic root of 4656439 is about 166.9877601079.

The spelling of 4656439 in words is "four million, six hundred fifty-six thousand, four hundred thirty-nine".