506749 has 8 divisors (see below), whose sum is σ = 540000. Its totient is φ = 474192.

The previous prime is 506743. The next prime is 506773. The reversal of 506749 is 947605.

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 506749 - 2¹³ = 498557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 506749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506743) 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, 2742 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (67500).

2⁵⁰⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

506749 is a deficient number, since it is larger than the sum of its proper divisors (33251).

506749 is a wasteful number, since it uses less digits than its factorization.

506749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 506749 is about 711.8630486266. The cubic root of 506749 is about 79.7255700960.

The spelling of 506749 in words is "five hundred six thousand, seven hundred forty-nine".