8630881 has 4 divisors (see below), whose sum is σ = 9863872. Its totient is φ = 7397892.

The previous prime is 8630861. The next prime is 8630899. The reversal of 8630881 is 1880368.

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 8630881 - 2²³ = 242273 is a prime.

It is a super-2 number, since 2×8630881² = 148984213672322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8630821) 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, 616485 + ... + 616498.

It is an arithmetic number, because the mean of its divisors is an integer number (2465968).

Almost surely, 2^8630881 is an apocalyptic number.

It is an amenable number.

8630881 is a deficient number, since it is larger than the sum of its proper divisors (1232991).

8630881 is a wasteful number, since it uses less digits than its factorization.

8630881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232990.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 8630881 is about 2937.8361084308. The cubic root of 8630881 is about 205.1248971207.

The spelling of 8630881 in words is "eight million, six hundred thirty thousand, eight hundred eighty-one".