476639 has 2 divisors, whose sum is σ = 476640. Its totient is φ = 476638.

The previous prime is 476633. The next prime is 476647. The reversal of 476639 is 936674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 476639 - 2¹² = 472543 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 476599 and 476608.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 476639.

It is not a weakly prime, because it can be changed into another prime (476633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238319 + 238320.

It is an arithmetic number, because the mean of its divisors is an integer number (238320).

2⁴⁷⁶⁶³⁹ is an apocalyptic number.

476639 is a deficient number, since it is larger than the sum of its proper divisors (1).

476639 is an equidigital number, since it uses as much as digits as its factorization.

476639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 35.

The square root of 476639 is about 690.3904692274. The cubic root of 476639 is about 78.1141764206.

Adding to 476639 its sum of digits (35), we get a palindrome (476674).

The spelling of 476639 in words is "four hundred seventy-six thousand, six hundred thirty-nine".