399471573 has 8 divisors (see below), whose sum is σ = 547024288. Its totient is φ = 259116624.

The previous prime is 399471551. The next prime is 399471577. The reversal of 399471573 is 375174993.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 399471573 - 2⁶ = 399471509 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 (399471577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799311 + ... + 1799532.

It is an arithmetic number, because the mean of its divisors is an integer number (68378036).

Almost surely, 2^399471573 is an apocalyptic number.

It is an amenable number.

399471573 is a deficient number, since it is larger than the sum of its proper divisors (147552715).

399471573 is a wasteful number, since it uses less digits than its factorization.

399471573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598883.

The product of its digits is 714420, while the sum is 48.

The square root of 399471573 is about 19986.7849590673. The cubic root of 399471573 is about 736.4816997945.

The spelling of 399471573 in words is "three hundred ninety-nine million, four hundred seventy-one thousand, five hundred seventy-three".