523221479 has 8 divisors (see below), whose sum is σ = 571222800. Its totient is φ = 475292800.

The previous prime is 523221469. The next prime is 523221539. The reversal of 523221479 is 974122325.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523221479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523221469) 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, 2504 + ... + 32445.

It is an arithmetic number, because the mean of its divisors is an integer number (71402850).

Almost surely, 2^523221479 is an apocalyptic number.

523221479 is a deficient number, since it is larger than the sum of its proper divisors (48001321).

523221479 is a wasteful number, since it uses less digits than its factorization.

523221479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36321.

The product of its digits is 30240, while the sum is 35.

The square root of 523221479 is about 22874.0350397563. The cubic root of 523221479 is about 805.8023347088.

The spelling of 523221479 in words is "five hundred twenty-three million, two hundred twenty-one thousand, four hundred seventy-nine".