471640073 has 4 divisors (see below), whose sum is σ = 484387140. Its totient is φ = 458893008.

The previous prime is 471640067. The next prime is 471640087. The reversal of 471640073 is 370046174.

It is a happy number.

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 412780489 + 58859584 = 20317^2 + 7672^2 .

It is a cyclic number.

It is not a de Polignac number, because 471640073 - 2¹² = 471635977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (471640573) 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 3 ways as a sum of consecutive naturals, for example, 6373478 + ... + 6373551.

It is an arithmetic number, because the mean of its divisors is an integer number (121096785).

Almost surely, 2^471640073 is an apocalyptic number.

It is an amenable number.

471640073 is a deficient number, since it is larger than the sum of its proper divisors (12747067).

471640073 is a wasteful number, since it uses less digits than its factorization.

471640073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12747066.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 471640073 is about 21717.2759111266. The cubic root of 471640073 is about 778.4013240171.

The spelling of 471640073 in words is "four hundred seventy-one million, six hundred forty thousand, seventy-three".