233893986479 has 4 divisors (see below), whose sum is σ = 233896918584. Its totient is φ = 233891054376.

The previous prime is 233893986451. The next prime is 233893986493. The reversal of 233893986479 is 974689398332.

233893986479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 233893986479 - 2¹⁶ = 233893920943 is a prime.

It is a super-2 number, since 2×233893986479² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233893986439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342952 + ... + 1507085.

It is an arithmetic number, because the mean of its divisors is an integer number (58474229646).

Almost surely, 2^233893986479 is an apocalyptic number.

233893986479 is a deficient number, since it is larger than the sum of its proper divisors (2932105).

233893986479 is an equidigital number, since it uses as much as digits as its factorization.

233893986479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932104.

The product of its digits is 423263232, while the sum is 71.

The spelling of 233893986479 in words is "two hundred thirty-three billion, eight hundred ninety-three million, nine hundred eighty-six thousand, four hundred seventy-nine".