512008993 has 4 divisors (see below), whose sum is σ = 513105840. Its totient is φ = 510912148.

The previous prime is 512008969. The next prime is 512009039. The reversal of 512008993 is 399800215.

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 not a de Polignac number, because 512008993 - 2⁵ = 512008961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512002993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547723 + ... + 548656.

It is an arithmetic number, because the mean of its divisors is an integer number (128276460).

Almost surely, 2^512008993 is an apocalyptic number.

It is an amenable number.

512008993 is a deficient number, since it is larger than the sum of its proper divisors (1096847).

512008993 is a wasteful number, since it uses less digits than its factorization.

512008993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096846.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 512008993 is about 22627.6157161995. The cubic root of 512008993 is about 800.0046838267.

The spelling of 512008993 in words is "five hundred twelve million, eight thousand, nine hundred ninety-three".