412861 has 4 divisors (see below), whose sum is σ = 415324. Its totient is φ = 410400.

The previous prime is 412859. The next prime is 412891. The reversal of 412861 is 168214.

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

It can be written as a sum of positive squares in 2 ways, for example, as 93636 + 319225 = 306^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 412861 - 2¹ = 412859 is a prime.

It is a super-4 number, since 4×412861⁴ (a number of 24 digits) contains 4444 as substring.

It is a Duffinian number.

412861 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412831) 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 3 ways as a sum of consecutive naturals, for example, 960 + ... + 1321.

It is an arithmetic number, because the mean of its divisors is an integer number (103831).

2⁴¹²⁸⁶¹ is an apocalyptic number.

It is an amenable number.

412861 is a deficient number, since it is larger than the sum of its proper divisors (2463).

412861 is a wasteful number, since it uses less digits than its factorization.

412861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462.

The product of its digits is 384, while the sum is 22.

The square root of 412861 is about 642.5426055913. The cubic root of 412861 is about 74.4619868232.

The spelling of 412861 in words is "four hundred twelve thousand, eight hundred sixty-one".