285073469 has 2 divisors, whose sum is σ = 285073470. Its totient is φ = 285073468.

The previous prime is 285073447. The next prime is 285073487. The reversal of 285073469 is 964370582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261210244 + 23863225 = 16162^2 + 4885^2 .

It is a cyclic number.

It is not a de Polignac number, because 285073469 - 2⁸ = 285073213 is a prime.

It is a super-2 number, since 2×285073469² = 162533765455387922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285073429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142536734 + 142536735.

It is an arithmetic number, because the mean of its divisors is an integer number (142536735).

Almost surely, 2^285073469 is an apocalyptic number.

It is an amenable number.

285073469 is a deficient number, since it is larger than the sum of its proper divisors (1).

285073469 is an equidigital number, since it uses as much as digits as its factorization.

285073469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 285073469 is about 16884.1188399040. The cubic root of 285073469 is about 658.1409799762.

The spelling of 285073469 in words is "two hundred eighty-five million, seventy-three thousand, four hundred sixty-nine".