233479481 has 4 divisors (see below), whose sum is σ = 234089472. Its totient is φ = 232869492.

The previous prime is 233479471. The next prime is 233479489. The reversal of 233479481 is 184974332.

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 a de Polignac number, because none of the positive numbers 2^k-233479481 is a prime.

It is a super-2 number, since 2×233479481² = 109025336096058722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233479489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304421 + ... + 305186.

It is an arithmetic number, because the mean of its divisors is an integer number (58522368).

Almost surely, 2^233479481 is an apocalyptic number.

It is an amenable number.

233479481 is a deficient number, since it is larger than the sum of its proper divisors (609991).

233479481 is an equidigital number, since it uses as much as digits as its factorization.

233479481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609990.

The product of its digits is 145152, while the sum is 41.

The square root of 233479481 is about 15280.0353729957. The cubic root of 233479481 is about 615.7667577426.

The spelling of 233479481 in words is "two hundred thirty-three million, four hundred seventy-nine thousand, four hundred eighty-one".