8133979393 has 8 divisors (see below), whose sum is σ = 8212521312. Its totient is φ = 8055484416.

The previous prime is 8133979387. The next prime is 8133979457. The reversal of 8133979393 is 3939793318.

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

It is a cyclic number.

It is not a de Polignac number, because 8133979393 - 2¹⁷ = 8133848321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8133979193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408321 + ... + 427777.

It is an arithmetic number, because the mean of its divisors is an integer number (1026565164).

Almost surely, 2^8133979393 is an apocalyptic number.

It is an amenable number.

8133979393 is a deficient number, since it is larger than the sum of its proper divisors (78541919).

8133979393 is a wasteful number, since it uses less digits than its factorization.

8133979393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23471.

The product of its digits is 3306744, while the sum is 55.

The square root of 8133979393 is about 90188.5768431901. The cubic root of 8133979393 is about 2011.1031948807.

The spelling of 8133979393 in words is "eight billion, one hundred thirty-three million, nine hundred seventy-nine thousand, three hundred ninety-three".