8724481 has 4 divisors (see below), whose sum is σ = 8810964. Its totient is φ = 8638000.

The previous prime is 8724479. The next prime is 8724487. The reversal of 8724481 is 1844278.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6426225 + 2298256 = 2535^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 8724481 - 2¹ = 8724479 is a prime.

It is a super-2 number, since 2×8724481² = 152233137438722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8724487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43090 + ... + 43291.

It is an arithmetic number, because the mean of its divisors is an integer number (2202741).

It is a Proth number, since it is equal to 1065 ⋅ 2¹³ + 1 and 1065 < 2¹³.

Almost surely, 2^8724481 is an apocalyptic number.

It is an amenable number.

8724481 is a deficient number, since it is larger than the sum of its proper divisors (86483).

8724481 is a wasteful number, since it uses less digits than its factorization.

8724481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86482.

The product of its digits is 14336, while the sum is 34.

The square root of 8724481 is about 2953.7232436367. The cubic root of 8724481 is about 205.8637440612.

The spelling of 8724481 in words is "eight million, seven hundred twenty-four thousand, four hundred eighty-one".