472665686 has 8 divisors (see below), whose sum is σ = 739824624. Its totient is φ = 226057480.

The previous prime is 472665659. The next prime is 472665701. The reversal of 472665686 is 686566274.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5137625 + ... + 5137716.

It is an arithmetic number, because the mean of its divisors is an integer number (92478078).

Almost surely, 2^472665686 is an apocalyptic number.

472665686 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

472665686 is a deficient number, since it is larger than the sum of its proper divisors (267158938).

472665686 is a wasteful number, since it uses less digits than its factorization.

472665686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10275366.

The product of its digits is 2903040, while the sum is 50.

The square root of 472665686 is about 21740.8759253163. The cubic root of 472665686 is about 778.9651441705.

The spelling of 472665686 in words is "four hundred seventy-two million, six hundred sixty-five thousand, six hundred eighty-six".