470729561 has 4 divisors (see below), whose sum is σ = 470853300. Its totient is φ = 470605824.

The previous prime is 470729549. The next prime is 470729573. The reversal of 470729561 is 165927074.

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

It is an interprime number because it is at equal distance from previous prime (470729549) and next prime (470729573).

It can be written as a sum of positive squares in 2 ways, for example, as 287641600 + 183087961 = 16960^2 + 13531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-470729561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (470729521) 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, 55976 + ... + 63833.

It is an arithmetic number, because the mean of its divisors is an integer number (117713325).

Almost surely, 2^470729561 is an apocalyptic number.

It is an amenable number.

470729561 is a deficient number, since it is larger than the sum of its proper divisors (123739).

470729561 is a wasteful number, since it uses less digits than its factorization.

470729561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123738.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 470729561 is about 21696.3029339102. The cubic root of 470729561 is about 777.9000941183.

The spelling of 470729561 in words is "four hundred seventy million, seven hundred twenty-nine thousand, five hundred sixty-one".