412639 has 2 divisors, whose sum is σ = 412640. Its totient is φ = 412638.

The previous prime is 412637. The next prime is 412651. The reversal of 412639 is 936214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 412639 - 2¹ = 412637 is a prime.

Together with 412637, it forms a pair of twin primes.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412637) 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, 206319 + 206320.

It is an arithmetic number, because the mean of its divisors is an integer number (206320).

2⁴¹²⁶³⁹ is an apocalyptic number.

412639 is a deficient number, since it is larger than the sum of its proper divisors (1).

412639 is an equidigital number, since it uses as much as digits as its factorization.

412639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 412639 is about 642.3698311720. The cubic root of 412639 is about 74.4486380813.

The spelling of 412639 in words is "four hundred twelve thousand, six hundred thirty-nine".