471999697 has 4 divisors (see below), whose sum is σ = 508307380. Its totient is φ = 435692016.

The previous prime is 471999683. The next prime is 471999701. The reversal of 471999697 is 796999174.

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 128119761 + 343879936 = 11319^2 + 18544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-471999697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471999617) 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, 18153822 + ... + 18153847.

It is an arithmetic number, because the mean of its divisors is an integer number (127076845).

Almost surely, 2^471999697 is an apocalyptic number.

It is an amenable number.

471999697 is a deficient number, since it is larger than the sum of its proper divisors (36307683).

471999697 is a wasteful number, since it uses less digits than its factorization.

471999697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36307682.

The product of its digits is 7715736, while the sum is 61.

The square root of 471999697 is about 21725.5540090466. The cubic root of 471999697 is about 778.5991165676.

The spelling of 471999697 in words is "four hundred seventy-one million, nine hundred ninety-nine thousand, six hundred ninety-seven".