470531645 has 4 divisors (see below), whose sum is σ = 564637980. Its totient is φ = 376425312.

The previous prime is 470531639. The next prime is 470531681. The reversal of 470531645 is 546135074.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121066009 + 349465636 = 11003^2 + 18694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-470531645 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47053160 + ... + 47053169.

It is an arithmetic number, because the mean of its divisors is an integer number (141159495).

Almost surely, 2^470531645 is an apocalyptic number.

It is an amenable number.

470531645 is a deficient number, since it is larger than the sum of its proper divisors (94106335).

470531645 is an equidigital number, since it uses as much as digits as its factorization.

470531645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94106334.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 470531645 is about 21691.7414008189. The cubic root of 470531645 is about 777.7910573734.

The spelling of 470531645 in words is "four hundred seventy million, five hundred thirty-one thousand, six hundred forty-five".