852989 has 2 divisors, whose sum is σ = 852990. Its totient is φ = 852988.

The previous prime is 852959. The next prime is 852997. The reversal of 852989 is 989258.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840889 + 12100 = 917^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 852989 - 2¹² = 848893 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 852989.

It is not a weakly prime, because it can be changed into another prime (852959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426494 + 426495.

It is an arithmetic number, because the mean of its divisors is an integer number (426495).

2⁸⁵²⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

852989 is a deficient number, since it is larger than the sum of its proper divisors (1).

852989 is an equidigital number, since it uses as much as digits as its factorization.

852989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 852989 is about 923.5740360144. The cubic root of 852989 is about 94.8377285187.

The spelling of 852989 in words is "eight hundred fifty-two thousand, nine hundred eighty-nine".