905629 has 2 divisors, whose sum is σ = 905630. Its totient is φ = 905628.

The previous prime is 905621. The next prime is 905647. The reversal of 905629 is 926509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 99225 = 898^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 905629 - 2³ = 905621 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 905629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (905621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452814 + 452815.

It is an arithmetic number, because the mean of its divisors is an integer number (452815).

2⁹⁰⁵⁶²⁹ is an apocalyptic number.

It is an amenable number.

905629 is a deficient number, since it is larger than the sum of its proper divisors (1).

905629 is an equidigital number, since it uses as much as digits as its factorization.

905629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 905629 is about 951.6454171591. The cubic root of 905629 is about 96.7498069245.

The spelling of 905629 in words is "nine hundred five thousand, six hundred twenty-nine".