523676021 has 12 divisors (see below), whose sum is σ = 587864256. Its totient is φ = 465934920.

The previous prime is 523676009. The next prime is 523676039. The reversal of 523676021 is 120676325.

It is not a de Polignac number, because 523676021 - 2¹⁰ = 523674997 is a prime.

It is a super-3 number, since 3×523676021³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523676051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40355 + ... + 51728.

It is an arithmetic number, because the mean of its divisors is an integer number (48988688).

Almost surely, 2^523676021 is an apocalyptic number.

It is an amenable number.

523676021 is a deficient number, since it is larger than the sum of its proper divisors (64188235).

523676021 is a wasteful number, since it uses less digits than its factorization.

523676021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92152 (or 92141 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 523676021 is about 22883.9686461942. The cubic root of 523676021 is about 806.0356106772.

The spelling of 523676021 in words is "five hundred twenty-three million, six hundred seventy-six thousand, twenty-one".