474847681 has 27 divisors (see below), whose sum is σ = 609307713. Its totient is φ = 368703720.

The previous prime is 474847679. The next prime is 474847697. The reversal of 474847681 is 186748474.

The square root of 474847681 is 21791.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 474847681 - 2¹ = 474847679 is a prime.

It is a super-3 number, since 3×474847681³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (474847651) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1677766 + ... + 1678048.

Almost surely, 2^474847681 is an apocalyptic number.

474847681 is the 21791-st square number.

474847681 is the 10896-th centered octagonal number.

It is an amenable number.

474847681 is a deficient number, since it is larger than the sum of its proper divisors (134460032).

474847681 is an equidigital number, since it uses as much as digits as its factorization.

474847681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 301 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 49.

The cubic root of 474847681 is about 780.1619655988.

Multiplying 474847681 by its sum of digits (49), we get a square (23267536369 = 152537²).

474847681 divided by its sum of digits (49) gives a square (9690769 = 3113²).

The spelling of 474847681 in words is "four hundred seventy-four million, eight hundred forty-seven thousand, six hundred eighty-one".