286928469 has 6 divisors (see below), whose sum is σ = 414452246. Its totient is φ = 191285640.

The previous prime is 286928461. The next prime is 286928489. The reversal of 286928469 is 964829682.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 285272100 + 1656369 = 16890^2 + 1287^2 .

It is not a de Polignac number, because 286928469 - 2³ = 286928461 is a prime.

It is a super-2 number, since 2×286928469² = 164655892645367922, 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 (286928461) 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 5 ways as a sum of consecutive naturals, for example, 15940462 + ... + 15940479.

Almost surely, 2^286928469 is an apocalyptic number.

It is an amenable number.

286928469 is a deficient number, since it is larger than the sum of its proper divisors (127523777).

286928469 is a wasteful number, since it uses less digits than its factorization.

286928469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31880947 (or 31880944 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 286928469 is about 16938.9630438230. The cubic root of 286928469 is about 659.5654232823.

The spelling of 286928469 in words is "two hundred eighty-six million, nine hundred twenty-eight thousand, four hundred sixty-nine".