834674521 has 4 divisors (see below), whose sum is σ = 836715700. Its totient is φ = 832633344.

The previous prime is 834674497. The next prime is 834674539. The reversal of 834674521 is 125476438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 570254400 + 264420121 = 23880^2 + 16261^2 .

It is a cyclic number.

It is not a de Polignac number, because 834674521 - 2¹¹ = 834672473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (834674021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019976 + ... + 1020793.

It is an arithmetic number, because the mean of its divisors is an integer number (209178925).

Almost surely, 2^834674521 is an apocalyptic number.

It is an amenable number.

834674521 is a deficient number, since it is larger than the sum of its proper divisors (2041179).

834674521 is a wasteful number, since it uses less digits than its factorization.

834674521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041178.

The product of its digits is 161280, while the sum is 40.

The square root of 834674521 is about 28890.7341720490. The cubic root of 834674521 is about 941.5406006539.

The spelling of 834674521 in words is "eight hundred thirty-four million, six hundred seventy-four thousand, five hundred twenty-one".