471640399 has 4 divisors (see below), whose sum is σ = 476219536. Its totient is φ = 467061264.

The previous prime is 471640387. The next prime is 471640409. The reversal of 471640399 is 993046174.

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

It is a cyclic number.

It is not a de Polignac number, because 471640399 - 2¹¹ = 471638351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471641399) 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, 2289414 + ... + 2289619.

It is an arithmetic number, because the mean of its divisors is an integer number (119054884).

Almost surely, 2^471640399 is an apocalyptic number.

471640399 is a deficient number, since it is larger than the sum of its proper divisors (4579137).

471640399 is a wasteful number, since it uses less digits than its factorization.

471640399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579136.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 471640399 is about 21717.2834166707. The cubic root of 471640399 is about 778.4015033620.

The spelling of 471640399 in words is "four hundred seventy-one million, six hundred forty thousand, three hundred ninety-nine".