521794914 has 32 divisors (see below), whose sum is σ = 1085170176. Its totient is φ = 167084160.

The previous prime is 521794907. The next prime is 521794919. The reversal of 521794914 is 419497125.

It is not an unprimeable number, because it can be changed into a prime (521794919) 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 15 ways as a sum of consecutive naturals, for example, 15244 + ... + 35720.

It is an arithmetic number, because the mean of its divisors is an integer number (33911568).

Almost surely, 2^521794914 is an apocalyptic number.

521794914 is an abundant number, since it is smaller than the sum of its proper divisors (563375262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521794914 is a wasteful number, since it uses less digits than its factorization.

521794914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20650.

The product of its digits is 90720, while the sum is 42.

The square root of 521794914 is about 22842.8306914883. The cubic root of 521794914 is about 805.0693272598.

The spelling of 521794914 in words is "five hundred twenty-one million, seven hundred ninety-four thousand, nine hundred fourteen".