4992817393 has 4 divisors (see below), whose sum is σ = 5164983540. Its totient is φ = 4820651248.

The previous prime is 4992817381. The next prime is 4992817411. The reversal of 4992817393 is 3937182994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4284618849 + 708198544 = 65457^2 + 26612^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4992817393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4992817493) 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, 86083030 + ... + 86083087.

It is an arithmetic number, because the mean of its divisors is an integer number (1291245885).

Almost surely, 2^4992817393 is an apocalyptic number.

It is an amenable number.

4992817393 is a deficient number, since it is larger than the sum of its proper divisors (172166147).

4992817393 is a wasteful number, since it uses less digits than its factorization.

4992817393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172166146.

The product of its digits is 2939328, while the sum is 55.

The square root of 4992817393 is about 70659.8711646151. The cubic root of 4992817393 is about 1709.1567486059.

The spelling of 4992817393 in words is "four billion, nine hundred ninety-two million, eight hundred seventeen thousand, three hundred ninety-three".