805932421 has 4 divisors (see below), whose sum is σ = 921065632. Its totient is φ = 690799212.

The previous prime is 805932403. The next prime is 805932497. The reversal of 805932421 is 124239508.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 805932421 - 2¹⁷ = 805801349 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 (805938421) 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, 57566595 + ... + 57566608.

It is an arithmetic number, because the mean of its divisors is an integer number (230266408).

Almost surely, 2^805932421 is an apocalyptic number.

It is an amenable number.

805932421 is a deficient number, since it is larger than the sum of its proper divisors (115133211).

805932421 is a wasteful number, since it uses less digits than its factorization.

805932421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115133210.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 805932421 is about 28388.9489238330. The cubic root of 805932421 is about 930.6067728728.

The spelling of 805932421 in words is "eight hundred five million, nine hundred thirty-two thousand, four hundred twenty-one".