473666691 has 16 divisors (see below), whose sum is σ = 645004800. Its totient is φ = 309099168.

The previous prime is 473666689. The next prime is 473666717. The reversal of 473666691 is 196666374.

It is not a de Polignac number, because 473666691 - 2¹ = 473666689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 473666691.

It is not an unprimeable number, because it can be changed into a prime (473666621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36705 + ... + 47901.

It is an arithmetic number, because the mean of its divisors is an integer number (40312800).

Almost surely, 2^473666691 is an apocalyptic number.

473666691 is a deficient number, since it is larger than the sum of its proper divisors (171338109).

473666691 is a wasteful number, since it uses less digits than its factorization.

473666691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11498.

The product of its digits is 979776, while the sum is 48.

The square root of 473666691 is about 21763.8850162373. The cubic root of 473666691 is about 779.5146503912.

The spelling of 473666691 in words is "four hundred seventy-three million, six hundred sixty-six thousand, six hundred ninety-one".