287629 has 2 divisors, whose sum is σ = 287630. Its totient is φ = 287628.

The previous prime is 287611. The next prime is 287669. The reversal of 287629 is 926782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161604 + 126025 = 402^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 287629 - 2⁵ = 287597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 287594 and 287603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143814 + 143815.

It is an arithmetic number, because the mean of its divisors is an integer number (143815).

2²⁸⁷⁶²⁹ is an apocalyptic number.

It is an amenable number.

287629 is a deficient number, since it is larger than the sum of its proper divisors (1).

287629 is an equidigital number, since it uses as much as digits as its factorization.

287629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 287629 is about 536.3105443677. The cubic root of 287629 is about 66.0101759639.

The spelling of 287629 in words is "two hundred eighty-seven thousand, six hundred twenty-nine".