472507686 has 72 divisors (see below), whose sum is σ = 1223183520. Its totient is φ = 131344416.

The previous prime is 472507631. The next prime is 472507709. The reversal of 472507686 is 686705274.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25395 + ... + 39873.

It is an arithmetic number, because the mean of its divisors is an integer number (16988660).

Almost surely, 2^472507686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472507686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611591760).

472507686 is an abundant number, since it is smaller than the sum of its proper divisors (750675834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

472507686 is a wasteful number, since it uses less digits than its factorization.

472507686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14538 (or 14528 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 472507686 is about 21737.2419133615. The cubic root of 472507686 is about 778.8783384833.

The spelling of 472507686 in words is "four hundred seventy-two million, five hundred seven thousand, six hundred eighty-six".