470805681 has 4 divisors (see below), whose sum is σ = 627740912. Its totient is φ = 313870452.

The previous prime is 470805677. The next prime is 470805697. The reversal of 470805681 is 186508074.

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 not a de Polignac number, because 470805681 - 2² = 470805677 is a prime.

It is a super-2 number, since 2×470805681² = 443315978523747522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470805611) 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, 78467611 + ... + 78467616.

It is an arithmetic number, because the mean of its divisors is an integer number (156935228).

Almost surely, 2^470805681 is an apocalyptic number.

It is an amenable number.

470805681 is a deficient number, since it is larger than the sum of its proper divisors (156935231).

470805681 is a wasteful number, since it uses less digits than its factorization.

470805681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156935230.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 470805681 is about 21698.0570789184. The cubic root of 470805681 is about 777.9420223425.

The spelling of 470805681 in words is "four hundred seventy million, eight hundred five thousand, six hundred eighty-one".