521012794 has 16 divisors (see below), whose sum is σ = 827258400. Its totient is φ = 245413584.

The previous prime is 521012783. The next prime is 521012797. The reversal of 521012794 is 497210125.

It is not an unprimeable number, because it can be changed into a prime (521012797) 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, 31497 + ... + 45100.

It is an arithmetic number, because the mean of its divisors is an integer number (51703650).

Almost surely, 2^521012794 is an apocalyptic number.

521012794 is a deficient number, since it is larger than the sum of its proper divisors (306245606).

521012794 is a wasteful number, since it uses less digits than its factorization.

521012794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76797.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 521012794 is about 22825.7046769645. The cubic root of 521012794 is about 804.6668858230. Note that the first 3 decimals are identical.

The spelling of 521012794 in words is "five hundred twenty-one million, twelve thousand, seven hundred ninety-four".