470215681 has 8 divisors (see below), whose sum is σ = 508360104. Its totient is φ = 432353280.

The previous prime is 470215639. The next prime is 470215729. The reversal of 470215681 is 186512074.

It can be written as a sum of positive squares in 4 ways, for example, as 117527281 + 352688400 = 10841^2 + 18780^2 .

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 470215681 - 2¹⁵ = 470182913 is a prime.

It is a super-2 number, since 2×470215681² = 442205573316587522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470215481) 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 7 ways as a sum of consecutive naturals, for example, 67030 + ... + 73711.

It is an arithmetic number, because the mean of its divisors is an integer number (63545013).

Almost surely, 2^470215681 is an apocalyptic number.

It is an amenable number.

470215681 is a deficient number, since it is larger than the sum of its proper divisors (38144423).

470215681 is a wasteful number, since it uses less digits than its factorization.

470215681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141011.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 470215681 is about 21684.4571294741. The cubic root of 470215681 is about 777.6169217228.

The spelling of 470215681 in words is "four hundred seventy million, two hundred fifteen thousand, six hundred eighty-one".