8870385481 has 8 divisors (see below), whose sum is σ = 8963748360. Its totient is φ = 8777061888.

The previous prime is 8870385473. The next prime is 8870385521. The reversal of 8870385481 is 1845830788.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 478909456 + 8391476025 = 21884^2 + 91605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8870385481 - 2³ = 8870385473 is a prime.

It is a super-2 number, since 2×8870385481² (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 (8870385451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746535 + ... + 758323.

It is an arithmetic number, because the mean of its divisors is an integer number (1120468545).

Almost surely, 2^8870385481 is an apocalyptic number.

It is an amenable number.

8870385481 is a deficient number, since it is larger than the sum of its proper divisors (93362879).

8870385481 is a wasteful number, since it uses less digits than its factorization.

8870385481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19643.

The product of its (nonzero) digits is 1720320, while the sum is 52.

The square root of 8870385481 is about 94182.7238988128. The cubic root of 8870385481 is about 2070.0499790340.

The spelling of 8870385481 in words is "eight billion, eight hundred seventy million, three hundred eighty-five thousand, four hundred eighty-one".