412021993 has 8 divisors (see below), whose sum is σ = 415598400. Its totient is φ = 408454608.

The previous prime is 412021963. The next prime is 412022003. The reversal of 412021993 is 399120214.

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 412021993 - 2⁹ = 412021481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (412021903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114855 + ... + 118387.

It is an arithmetic number, because the mean of its divisors is an integer number (51949800).

Almost surely, 2^412021993 is an apocalyptic number.

It is an amenable number.

412021993 is a deficient number, since it is larger than the sum of its proper divisors (3576407).

412021993 is a wasteful number, since it uses less digits than its factorization.

412021993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 412021993 is about 20298.3248816251. The cubic root of 412021993 is about 744.1151261559.

The spelling of 412021993 in words is "four hundred twelve million, twenty-one thousand, nine hundred ninety-three".