4997667993 has 4 divisors (see below), whose sum is σ = 6663557328. Its totient is φ = 3331778660.

The previous prime is 4997667979. The next prime is 4997668001. The reversal of 4997667993 is 3997667994.

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 4997667993 - 2⁴ = 4997667977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4997667923) 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, 832944663 + ... + 832944668.

It is an arithmetic number, because the mean of its divisors is an integer number (1665889332).

Almost surely, 2^4997667993 is an apocalyptic number.

It is an amenable number.

4997667993 is a deficient number, since it is larger than the sum of its proper divisors (1665889335).

4997667993 is a wasteful number, since it uses less digits than its factorization.

4997667993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665889334.

The product of its digits is 138883248, while the sum is 69.

The square root of 4997667993 is about 70694.1864158574. The cubic root of 4997667993 is about 1709.7100602773.

Subtracting from 4997667993 its reverse (3997667994), we obtain a palindrome (999999999).

The spelling of 4997667993 in words is "four billion, nine hundred ninety-seven million, six hundred sixty-seven thousand, nine hundred ninety-three".