8787481 has 4 divisors (see below), whose sum is σ = 9250000. Its totient is φ = 8324964.

The previous prime is 8787431. The next prime is 8787491. The reversal of 8787481 is 1847878.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1847878 = 2 ⋅923939.

It is not a de Polignac number, because 8787481 - 2¹¹ = 8785433 is a prime.

It is a super-2 number, since 2×8787481² = 154439644650722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8787431) 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, 231231 + ... + 231268.

It is an arithmetic number, because the mean of its divisors is an integer number (2312500).

Almost surely, 2^8787481 is an apocalyptic number.

It is an amenable number.

8787481 is a deficient number, since it is larger than the sum of its proper divisors (462519).

8787481 is a wasteful number, since it uses less digits than its factorization.

8787481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462518.

The product of its digits is 100352, while the sum is 43.

The square root of 8787481 is about 2964.3685668284. The cubic root of 8787481 is about 206.3580742442.

The spelling of 8787481 in words is "eight million, seven hundred eighty-seven thousand, four hundred eighty-one".