801289 has 2 divisors, whose sum is σ = 801290. Its totient is φ = 801288.

The previous prime is 801277. The next prime is 801293. The reversal of 801289 is 982108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795664 + 5625 = 892^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 801289 - 2¹⁷ = 670217 is a prime.

It is a Chen prime.

801289 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (801989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400644 + 400645.

It is an arithmetic number, because the mean of its divisors is an integer number (400645).

2⁸⁰¹²⁸⁹ is an apocalyptic number.

It is an amenable number.

801289 is a deficient number, since it is larger than the sum of its proper divisors (1).

801289 is an equidigital number, since it uses as much as digits as its factorization.

801289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 801289 is about 895.1474738835. The cubic root of 801289 is about 92.8816083181.

It can be divided in two parts, 80 and 1289, that added together give a square (1369 = 37²).

The spelling of 801289 in words is "eight hundred one thousand, two hundred eighty-nine".