508740993 has 20 divisors (see below), whose sum is σ = 760582768. Its totient is φ = 338887800.

The previous prime is 508740977. The next prime is 508741003. The reversal of 508740993 is 399047805.

It is not a de Polignac number, because 508740993 - 2⁴ = 508740977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (508740923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 177018 + ... + 179868.

Almost surely, 2^508740993 is an apocalyptic number.

It is an amenable number.

508740993 is a deficient number, since it is larger than the sum of its proper divisors (251841775).

508740993 is a wasteful number, since it uses less digits than its factorization.

508740993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066 (or 5057 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 508740993 is about 22555.2874732290. The cubic root of 508740993 is about 798.2989862747.

The spelling of 508740993 in words is "five hundred eight million, seven hundred forty thousand, nine hundred ninety-three".