869465 has 16 divisors (see below), whose sum is σ = 1131408. Its totient is φ = 638976.

The previous prime is 869461. The next prime is 869467. The reversal of 869465 is 564968.

It can be written as a sum of positive squares in 8 ways, for example, as 2704 + 866761 = 52^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 869465 - 2² = 869461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869465.

It is not an unprimeable number, because it can be changed into a prime (869461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4409 + ... + 4601.

It is an arithmetic number, because the mean of its divisors is an integer number (70713).

2⁸⁶⁹⁴⁶⁵ is an apocalyptic number.

869465 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

869465 is a deficient number, since it is larger than the sum of its proper divisors (261943).

869465 is a wasteful number, since it uses less digits than its factorization.

869465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its digits is 51840, while the sum is 38.

The square root of 869465 is about 932.4510711024. The cubic root of 869465 is about 95.4444547844. Note that the first 4 decimals are identical.

The spelling of 869465 in words is "eight hundred sixty-nine thousand, four hundred sixty-five".