472887487 has 4 divisors (see below), whose sum is σ = 500704416. Its totient is φ = 445070560.

The previous prime is 472887479. The next prime is 472887509. The reversal of 472887487 is 784788274.

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 472887487 - 2³ = 472887479 is a prime.

It is a super-2 number, since 2×472887487² = 447245150722350338, 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 (472887587) 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, 13908439 + ... + 13908472.

It is an arithmetic number, because the mean of its divisors is an integer number (125176104).

Almost surely, 2^472887487 is an apocalyptic number.

472887487 is a deficient number, since it is larger than the sum of its proper divisors (27816929).

472887487 is a wasteful number, since it uses less digits than its factorization.

472887487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27816928.

The product of its digits is 5619712, while the sum is 55.

The square root of 472887487 is about 21745.9763404635. The cubic root of 472887487 is about 779.0869696911.

It can be divided in two parts, 472887 and 487, that added together give a palindrome (473374).

The spelling of 472887487 in words is "four hundred seventy-two million, eight hundred eighty-seven thousand, four hundred eighty-seven".