286005421 has 8 divisors (see below), whose sum is σ = 308155904. Its totient is φ = 263876400.

The previous prime is 286005409. The next prime is 286005431. The reversal of 286005421 is 124500682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 286005421 - 2⁵ = 286005389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 286005421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286005431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31996 + ... + 39946.

It is an arithmetic number, because the mean of its divisors is an integer number (38519488).

Almost surely, 2^286005421 is an apocalyptic number.

It is an amenable number.

286005421 is a deficient number, since it is larger than the sum of its proper divisors (22150483).

286005421 is a wasteful number, since it uses less digits than its factorization.

286005421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10731.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 286005421 is about 16911.6947997532. The cubic root of 286005421 is about 658.8573901810.

The spelling of 286005421 in words is "two hundred eighty-six million, five thousand, four hundred twenty-one".