855413 has 8 divisors (see below), whose sum is σ = 953400. Its totient is φ = 762048.

The previous prime is 855401. The next prime is 855419. The reversal of 855413 is 314558.

It can be written as a sum of positive squares in 4 ways, for example, as 5329 + 850084 = 73^2 + 922^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 855413 - 2⁴ = 855397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (119175).

2⁸⁵⁵⁴¹³ is an apocalyptic number.

It is an amenable number.

855413 is a deficient number, since it is larger than the sum of its proper divisors (97987).

855413 is a wasteful number, since it uses less digits than its factorization.

855413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311.

The product of its digits is 2400, while the sum is 26.

The square root of 855413 is about 924.8853983062. The cubic root of 855413 is about 94.9274792795.

The spelling of 855413 in words is "eight hundred fifty-five thousand, four hundred thirteen".