472559639 has 4 divisors (see below), whose sum is σ = 472834056. Its totient is φ = 472285224.

The previous prime is 472559627. The next prime is 472559663. The reversal of 472559639 is 936955274.

It is a happy number.

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 472559639 - 2⁴ = 472559623 is a prime.

It is a super-2 number, since 2×472559639² = 446625224823620642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472559039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134609 + ... + 138074.

It is an arithmetic number, because the mean of its divisors is an integer number (118208514).

Almost surely, 2^472559639 is an apocalyptic number.

472559639 is a deficient number, since it is larger than the sum of its proper divisors (274417).

472559639 is a wasteful number, since it uses less digits than its factorization.

472559639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274416.

The product of its digits is 2041200, while the sum is 50.

The square root of 472559639 is about 21738.4369033286. The cubic root of 472559639 is about 778.9068837568.

The spelling of 472559639 in words is "four hundred seventy-two million, five hundred fifty-nine thousand, six hundred thirty-nine".