285572473 has 2 divisors, whose sum is σ = 285572474. Its totient is φ = 285572472.

The previous prime is 285572471. The next prime is 285572543. The reversal of 285572473 is 374275582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281299984 + 4272489 = 16772^2 + 2067^2 .

It is a cyclic number.

It is not a de Polignac number, because 285572473 - 2¹ = 285572471 is a prime.

Together with 285572471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (285572471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142786236 + 142786237.

It is an arithmetic number, because the mean of its divisors is an integer number (142786237).

Almost surely, 2^285572473 is an apocalyptic number.

It is an amenable number.

285572473 is a deficient number, since it is larger than the sum of its proper divisors (1).

285572473 is an equidigital number, since it uses as much as digits as its factorization.

285572473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 43.

The square root of 285572473 is about 16898.8896972553. The cubic root of 285572473 is about 658.5247682271.

The spelling of 285572473 in words is "two hundred eighty-five million, five hundred seventy-two thousand, four hundred seventy-three".