472641387 has 4 divisors (see below), whose sum is σ = 630188520. Its totient is φ = 315094256.

The previous prime is 472641349. The next prime is 472641401. The reversal of 472641387 is 783146274.

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 472641387 - 2¹¹ = 472639339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (472641307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78773562 + ... + 78773567.

It is an arithmetic number, because the mean of its divisors is an integer number (157547130).

Almost surely, 2^472641387 is an apocalyptic number.

472641387 is a deficient number, since it is larger than the sum of its proper divisors (157547133).

472641387 is a wasteful number, since it uses less digits than its factorization.

472641387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157547132.

The product of its digits is 225792, while the sum is 42.

The square root of 472641387 is about 21740.3170860041. The cubic root of 472641387 is about 778.9517954839.

The spelling of 472641387 in words is "four hundred seventy-two million, six hundred forty-one thousand, three hundred eighty-seven".