834850021 has 8 divisors (see below), whose sum is σ = 883419264. Its totient is φ = 787303440.

The previous prime is 834850019. The next prime is 834850033. The reversal of 834850021 is 120058438.

834850021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 834850021 - 2¹ = 834850019 is a prime.

It is a super-4 number, since 4×834850021⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834850061) 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, 253986 + ... + 257251.

It is an arithmetic number, because the mean of its divisors is an integer number (110427408).

Almost surely, 2^834850021 is an apocalyptic number.

It is an amenable number.

834850021 is a deficient number, since it is larger than the sum of its proper divisors (48569243).

834850021 is a wasteful number, since it uses less digits than its factorization.

834850021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511331.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 834850021 is about 28893.7713184001. The cubic root of 834850021 is about 941.6065859737.

The spelling of 834850021 in words is "eight hundred thirty-four million, eight hundred fifty thousand, twenty-one".