286630431 has 4 divisors (see below), whose sum is σ = 382173912. Its totient is φ = 191086952.

The previous prime is 286630417. The next prime is 286630451. The reversal of 286630431 is 134036682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 286630431 - 2¹⁰ = 286629407 is a prime.

It is a super-2 number, since 2×286630431² = 164314007950491522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 286630392 and 286630401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286630411) 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, 47771736 + ... + 47771741.

It is an arithmetic number, because the mean of its divisors is an integer number (95543478).

Almost surely, 2^286630431 is an apocalyptic number.

286630431 is a deficient number, since it is larger than the sum of its proper divisors (95543481).

286630431 is an equidigital number, since it uses as much as digits as its factorization.

286630431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95543480.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 286630431 is about 16930.1633482964. The cubic root of 286630431 is about 659.3369764946.

The spelling of 286630431 in words is "two hundred eighty-six million, six hundred thirty thousand, four hundred thirty-one".