506983709 has 4 divisors (see below), whose sum is σ = 508365504. Its totient is φ = 505601916.

The previous prime is 506983699. The next prime is 506983727. The reversal of 506983709 is 907389605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506983709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506983739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690347 + ... + 691080.

It is an arithmetic number, because the mean of its divisors is an integer number (127091376).

Almost surely, 2^506983709 is an apocalyptic number.

It is an amenable number.

506983709 is a deficient number, since it is larger than the sum of its proper divisors (1381795).

506983709 is a wasteful number, since it uses less digits than its factorization.

506983709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381794.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 506983709 is about 22516.2987411342. The cubic root of 506983709 is about 797.3787692545.

The spelling of 506983709 in words is "five hundred six million, nine hundred eighty-three thousand, seven hundred nine".