472717887 has 4 divisors (see below), whose sum is σ = 630290520. Its totient is φ = 315145256.

The previous prime is 472717871. The next prime is 472717913. The reversal of 472717887 is 788717274.

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 472717887 - 2⁴ = 472717871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472717807) 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, 78786312 + ... + 78786317.

It is an arithmetic number, because the mean of its divisors is an integer number (157572630).

Almost surely, 2^472717887 is an apocalyptic number.

472717887 is a deficient number, since it is larger than the sum of its proper divisors (157572633).

472717887 is a wasteful number, since it uses less digits than its factorization.

472717887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157572632.

The product of its digits is 1229312, while the sum is 51.

The square root of 472717887 is about 21742.0764187784. The cubic root of 472717887 is about 778.9938193095.

The spelling of 472717887 in words is "four hundred seventy-two million, seven hundred seventeen thousand, eight hundred eighty-seven".