869408 has 24 divisors (see below), whose sum is σ = 1735020. Its totient is φ = 428800.

The previous prime is 869399. The next prime is 869413. The reversal of 869408 is 804968.

It can be written as a sum of positive squares in 2 ways, for example, as 868624 + 784 = 932^2 + 28^2 .

It is a nialpdrome in base 11 and base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3098 + ... + 3366.

2⁸⁶⁹⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

869408 is a deficient number, since it is larger than the sum of its proper divisors (865612).

869408 is a wasteful number, since it uses less digits than its factorization.

869408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 869408 is about 932.4205059950. The cubic root of 869408 is about 95.4423690371.

The spelling of 869408 in words is "eight hundred sixty-nine thousand, four hundred eight".