412861993 has 4 divisors (see below), whose sum is σ = 412907220. Its totient is φ = 412816768.

The previous prime is 412861991. The next prime is 412862033. The reversal of 412861993 is 399168214.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15936064 + 396925929 = 3992^2 + 19923^2 .

It is a cyclic number.

It is not a de Polignac number, because 412861993 - 2¹ = 412861991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (412861991) 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, 3580 + ... + 28957.

It is an arithmetic number, because the mean of its divisors is an integer number (103226805).

Almost surely, 2^412861993 is an apocalyptic number.

It is an amenable number.

412861993 is a deficient number, since it is larger than the sum of its proper divisors (45227).

412861993 is a wasteful number, since it uses less digits than its factorization.

412861993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45226.

The product of its digits is 93312, while the sum is 43.

The square root of 412861993 is about 20319.0057089416. The cubic root of 412861993 is about 744.6204652105.

The spelling of 412861993 in words is "four hundred twelve million, eight hundred sixty-one thousand, nine hundred ninety-three".