869042 has 4 divisors (see below), whose sum is σ = 1303566. Its totient is φ = 434520.

The previous prime is 869039. The next prime is 869053. The reversal of 869042 is 240968.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 609961 + 259081 = 781^2 + 509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 868996 and 869014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217259 + ... + 217262.

2⁸⁶⁹⁰⁴² is an apocalyptic number.

869042 is a deficient number, since it is larger than the sum of its proper divisors (434524).

869042 is a wasteful number, since it uses less digits than its factorization.

869042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434523.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 869042 is about 932.2242219552. The cubic root of 869042 is about 95.4289741714.

The spelling of 869042 in words is "eight hundred sixty-nine thousand, forty-two".