854280021 has 8 divisors (see below), whose sum is σ = 1301760064. Its totient is φ = 488160000.

The previous prime is 854280001. The next prime is 854280029. The reversal of 854280021 is 120082458.

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

It is not a de Polignac number, because 854280021 - 2⁹ = 854279509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854280029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20339980 + ... + 20340021.

It is an arithmetic number, because the mean of its divisors is an integer number (162720008).

Almost surely, 2^854280021 is an apocalyptic number.

It is an amenable number.

854280021 is a deficient number, since it is larger than the sum of its proper divisors (447480043).

854280021 is a wasteful number, since it uses less digits than its factorization.

854280021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40680011.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 854280021 is about 29228.0690604084. The cubic root of 854280021 is about 948.8555085489.

It can be divided in two parts, 854 and 280021, that added together give a triangular number (280875 = T₇₄₉).

The spelling of 854280021 in words is "eight hundred fifty-four million, two hundred eighty thousand, twenty-one".