473285781 has 8 divisors (see below), whose sum is σ = 701164160. Its totient is φ = 315523836.

The previous prime is 473285749. The next prime is 473285843. The reversal of 473285781 is 187582374.

473285781 is a `hidden beast` number, since 4 + 73 + 2 + 8 + 578 + 1 = 666.

It is not a de Polignac number, because 473285781 - 2⁵ = 473285749 is a prime.

It is a super-2 number, since 2×473285781² = 447998860993559922, 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 (473285731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8764525 + ... + 8764578.

It is an arithmetic number, because the mean of its divisors is an integer number (87645520).

Almost surely, 2^473285781 is an apocalyptic number.

It is an amenable number.

473285781 is a deficient number, since it is larger than the sum of its proper divisors (227878379).

473285781 is a wasteful number, since it uses less digits than its factorization.

473285781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529112 (or 17529106 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 473285781 is about 21755.1322910250. The cubic root of 473285781 is about 779.3056394561.

The spelling of 473285781 in words is "four hundred seventy-three million, two hundred eighty-five thousand, seven hundred eighty-one".