869290 has 8 divisors (see below), whose sum is σ = 1564740. Its totient is φ = 347712.

The previous prime is 869273. The next prime is 869291. The reversal of 869290 is 92968.

869290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 833569 + 35721 = 913^2 + 189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (869291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43455 + ... + 43474.

2⁸⁶⁹²⁹⁰ is an apocalyptic number.

869290 is a deficient number, since it is larger than the sum of its proper divisors (695450).

869290 is a wasteful number, since it uses less digits than its factorization.

869290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86936.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 869290 is about 932.3572276762. The cubic root of 869290 is about 95.4380508845.

The spelling of 869290 in words is "eight hundred sixty-nine thousand, two hundred ninety".