805464621 has 16 divisors (see below), whose sum is σ = 1285072320. Its totient is φ = 495670320.

The previous prime is 805464617. The next prime is 805464629. The reversal of 805464621 is 126464508.

805464621 is a `hidden beast` number, since 8 + 0 + 5 + 4 + 646 + 2 + 1 = 666.

It is not a de Polignac number, because 805464621 - 2² = 805464617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805464629) 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 15 ways as a sum of consecutive naturals, for example, 1147035 + ... + 1147736.

It is an arithmetic number, because the mean of its divisors is an integer number (80317020).

Almost surely, 2^805464621 is an apocalyptic number.

It is an amenable number.

805464621 is a deficient number, since it is larger than the sum of its proper divisors (479607699).

805464621 is a wasteful number, since it uses less digits than its factorization.

805464621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294793 (or 2294787 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 805464621 is about 28380.7086063756. The cubic root of 805464621 is about 930.4266824607.

The spelling of 805464621 in words is "eight hundred five million, four hundred sixty-four thousand, six hundred twenty-one".