284274861 has 8 divisors (see below), whose sum is σ = 408189600. Its totient is φ = 174938352.

The previous prime is 284274829. The next prime is 284274869. The reversal of 284274861 is 168472482.

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

It is not a de Polignac number, because 284274861 - 2⁵ = 284274829 is a prime.

It is a super-4 number, since 4×284274861⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284274869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644511 + ... + 3644588.

It is an arithmetic number, because the mean of its divisors is an integer number (51023700).

Almost surely, 2^284274861 is an apocalyptic number.

It is an amenable number.

284274861 is a deficient number, since it is larger than the sum of its proper divisors (123914739).

284274861 is a wasteful number, since it uses less digits than its factorization.

284274861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289115.

The product of its digits is 172032, while the sum is 42.

The square root of 284274861 is about 16860.4525739969. The cubic root of 284274861 is about 657.5258306921.

The spelling of 284274861 in words is "two hundred eighty-four million, two hundred seventy-four thousand, eight hundred sixty-one".