500309693 has 8 divisors (see below), whose sum is σ = 538982136. Its totient is φ = 461664000.

The previous prime is 500309683. The next prime is 500309701. The reversal of 500309693 is 396903005.

It can be written as a sum of positive squares in 4 ways, for example, as 12694969 + 487614724 = 3563^2 + 22082^2 .

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 500309693 - 2⁸ = 500309437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500309633) 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, 50033 + ... + 59193.

It is an arithmetic number, because the mean of its divisors is an integer number (67372767).

Almost surely, 2^500309693 is an apocalyptic number.

It is an amenable number.

500309693 is a deficient number, since it is larger than the sum of its proper divisors (38672443).

500309693 is a wasteful number, since it uses less digits than its factorization.

500309693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 500309693 is about 22367.6036490278. The cubic root of 500309693 is about 793.8643611610.

The spelling of 500309693 in words is "five hundred million, three hundred nine thousand, six hundred ninety-three".