806373921 has 8 divisors (see below), whose sum is σ = 1075461760. Its totient is φ = 537434352.

The previous prime is 806373907. The next prime is 806373929. The reversal of 806373921 is 129373608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 806373921 - 2⁶ = 806373857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 806373921.

It is not an unprimeable number, because it can be changed into a prime (806373929) 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, 23686 + ... + 46623.

It is an arithmetic number, because the mean of its divisors is an integer number (134432720).

Almost surely, 2^806373921 is an apocalyptic number.

It is an amenable number.

806373921 is a deficient number, since it is larger than the sum of its proper divisors (269087839).

806373921 is a wasteful number, since it uses less digits than its factorization.

806373921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74135.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 806373921 is about 28396.7237722946. The cubic root of 806373921 is about 930.7766745821.

The spelling of 806373921 in words is "eight hundred six million, three hundred seventy-three thousand, nine hundred twenty-one".