285464669 has 4 divisors (see below), whose sum is σ = 326245344. Its totient is φ = 244683996.

The previous prime is 285464653. The next prime is 285464677. The reversal of 285464669 is 966464582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285464669 - 2⁴ = 285464653 is a prime.

It is a super-2 number, since 2×285464669² = 162980154494559122, 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 (285464609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20390327 + ... + 20390340.

It is an arithmetic number, because the mean of its divisors is an integer number (81561336).

Almost surely, 2^285464669 is an apocalyptic number.

It is an amenable number.

285464669 is a deficient number, since it is larger than the sum of its proper divisors (40780675).

285464669 is an equidigital number, since it uses as much as digits as its factorization.

285464669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40780674.

The product of its digits is 2488320, while the sum is 50.

The square root of 285464669 is about 16895.6997191593. The cubic root of 285464669 is about 658.4418931302.

The spelling of 285464669 in words is "two hundred eighty-five million, four hundred sixty-four thousand, six hundred sixty-nine".