865413 has 6 divisors (see below), whose sum is σ = 1250054. Its totient is φ = 576936.

The previous prime is 865409. The next prime is 865457. The reversal of 865413 is 314568.

865413 is a `hidden beast` number, since 8 + 654 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 859329 + 6084 = 927^2 + 78^2 .

It is not a de Polignac number, because 865413 - 2² = 865409 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48070 + ... + 48087.

2⁸⁶⁵⁴¹³ is an apocalyptic number.

It is an amenable number.

865413 is a deficient number, since it is larger than the sum of its proper divisors (384641).

865413 is a wasteful number, since it uses less digits than its factorization.

865413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96163 (or 96160 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 865413 is about 930.2757655663. The cubic root of 865413 is about 95.2959560822.

The spelling of 865413 in words is "eight hundred sixty-five thousand, four hundred thirteen".