8642481 has 4 divisors (see below), whose sum is σ = 11523312. Its totient is φ = 5761652.

The previous prime is 8642467. The next prime is 8642489. The reversal of 8642481 is 1842468.

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 not a de Polignac number, because 8642481 - 2⁵ = 8642449 is a prime.

It is a super-2 number, since 2×8642481² = 149384955670722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8642489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440411 + ... + 1440416.

It is an arithmetic number, because the mean of its divisors is an integer number (2880828).

Almost surely, 2^8642481 is an apocalyptic number.

It is an amenable number.

8642481 is a deficient number, since it is larger than the sum of its proper divisors (2880831).

8642481 is a wasteful number, since it uses less digits than its factorization.

8642481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880830.

The product of its digits is 12288, while the sum is 33.

The square root of 8642481 is about 2939.8096877179. The cubic root of 8642481 is about 205.2167526952.

The spelling of 8642481 in words is "eight million, six hundred forty-two thousand, four hundred eighty-one".