8684562481 has 9 divisors (see below), whose sum is σ = 10103209131. Its totient is φ = 7443351552.

The previous prime is 8684562473. The next prime is 8684562493. The reversal of 8684562481 is 1842654868.

It is a happy number.

The square root of 8684562481 is 93191.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3061962225 + 5622600256 = 55335^2 + 74984^2 .

It is not a de Polignac number, because 8684562481 - 2³ = 8684562473 is a prime.

It is a super-2 number, since 2×8684562481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8684562281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 645681 + ... + 658993.

Almost surely, 2^8684562481 is an apocalyptic number.

8684562481 is the 93191-st square number.

8684562481 is the 46596-th centered octagonal number.

It is an amenable number.

8684562481 is a deficient number, since it is larger than the sum of its proper divisors (1418646650).

8684562481 is an frugal number, since it uses more digits than its factorization.

8684562481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26640 (or 13320 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 52.

The cubic root of 8684562481 is about 2055.4929016586.

The spelling of 8684562481 in words is "eight billion, six hundred eighty-four million, five hundred sixty-two thousand, four hundred eighty-one".