412887817 has 4 divisors (see below), whose sum is σ = 413096980. Its totient is φ = 412678656.

The previous prime is 412887793. The next prime is 412887829. The reversal of 412887817 is 718788214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718788214 = 2 ⋅359394107.

It can be written as a sum of positive squares in 2 ways, for example, as 377175241 + 35712576 = 19421^2 + 5976^2 .

It is a cyclic number.

It is not a de Polignac number, because 412887817 - 2¹¹ = 412885769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (412887887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101592 + ... + 105577.

It is an arithmetic number, because the mean of its divisors is an integer number (103274245).

Almost surely, 2^412887817 is an apocalyptic number.

It is an amenable number.

412887817 is a deficient number, since it is larger than the sum of its proper divisors (209163).

412887817 is a wasteful number, since it uses less digits than its factorization.

412887817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209162.

The product of its digits is 200704, while the sum is 46.

The square root of 412887817 is about 20319.6411631702. The cubic root of 412887817 is about 744.6359899123.

The spelling of 412887817 in words is "four hundred twelve million, eight hundred eighty-seven thousand, eight hundred seventeen".