501693 has 8 divisors (see below), whose sum is σ = 676800. Its totient is φ = 330528.

The previous prime is 501691. The next prime is 501701. The reversal of 501693 is 396105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 501693 - 2¹ = 501691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501691) 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, 673 + ... + 1206.

It is an arithmetic number, because the mean of its divisors is an integer number (84600).

2⁵⁰¹⁶⁹³ is an apocalyptic number.

It is an amenable number.

501693 is a deficient number, since it is larger than the sum of its proper divisors (175107).

501693 is a wasteful number, since it uses less digits than its factorization.

501693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 501693 is about 708.3029013071. The cubic root of 501693 is about 79.4595340123.

Adding to 501693 its product of nonzero digits (810), we get a triangular number (502503 = T₁₀₀₂).

Adding to 501693 its reverse (396105), we get a palindrome (897798).

The spelling of 501693 in words is "five hundred one thousand, six hundred ninety-three".