854383021 has 8 divisors (see below), whose sum is σ = 889497464. Its totient is φ = 819901440.

The previous prime is 854383009. The next prime is 854383027. The reversal of 854383021 is 120383458.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 585882025 + 268500996 = 24205^2 + 16386^2 .

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 854383021 - 2⁵ = 854382989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854383027) 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, 155460 + ... + 160861.

It is an arithmetic number, because the mean of its divisors is an integer number (111187183).

Almost surely, 2^854383021 is an apocalyptic number.

It is an amenable number.

854383021 is a deficient number, since it is larger than the sum of its proper divisors (35114443).

854383021 is a wasteful number, since it uses less digits than its factorization.

854383021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316431.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 854383021 is about 29229.8310121697. The cubic root of 854383021 is about 948.8936413186.

The spelling of 854383021 in words is "eight hundred fifty-four million, three hundred eighty-three thousand, twenty-one".