506949987 has 8 divisors (see below), whose sum is σ = 694201936. Its totient is φ = 328832352.

The previous prime is 506949977. The next prime is 506949991. The reversal of 506949987 is 789949605.

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

It is not a de Polignac number, because 506949987 - 2¹⁵ = 506917219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506949967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2283448 + ... + 2283669.

It is an arithmetic number, because the mean of its divisors is an integer number (86775242).

Almost surely, 2^506949987 is an apocalyptic number.

506949987 is a deficient number, since it is larger than the sum of its proper divisors (187251949).

506949987 is a wasteful number, since it uses less digits than its factorization.

506949987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567157.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 506949987 is about 22515.5498933515. The cubic root of 506949987 is about 797.3610896574.

The spelling of 506949987 in words is "five hundred six million, nine hundred forty-nine thousand, nine hundred eighty-seven".